[media] rename most media/video usb drivers to media/usb

Rename all USB drivers with their own directory under
drivers/media/video into drivers/media/usb and update the
building system.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 0 insertions, 2472 deletions

diff --git a/drivers/media/video/uvc/uvc_driver.c b/drivers/media/video/uvc/uvc_driver.c
deleted file mode 100644
index 45d7aa162d9..00000000000
--- a/drivers/media/video/uvc/uvc_driver.c
+++ /dev/null
@@ -1,2472 +0,0 @@
-/*
- *      uvc_driver.c  --  USB Video Class driver
- *
- *      Copyright (C) 2005-2010
- *          Laurent Pinchart (laurent.pinchart@ideasonboard.com)
- *
- *      This program is free software; you can redistribute it and/or modify
- *      it under the terms of the GNU General Public License as published by
- *      the Free Software Foundation; either version 2 of the License, or
- *      (at your option) any later version.
- *
- */
-
-/*
- * This driver aims to support video input and ouput devices compliant with the
- * 'USB Video Class' specification.
- *
- * The driver doesn't support the deprecated v4l1 interface. It implements the
- * mmap capture method only, and doesn't do any image format conversion in
- * software. If your user-space application doesn't support YUYV or MJPEG, fix
- * it :-). Please note that the MJPEG data have been stripped from their
- * Huffman tables (DHT marker), you will need to add it back if your JPEG
- * codec can't handle MJPEG data.
- */
-
-#include <linux/atomic.h>
-#include <linux/kernel.h>
-#include <linux/list.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/usb.h>
-#include <linux/videodev2.h>
-#include <linux/vmalloc.h>
-#include <linux/wait.h>
-#include <linux/version.h>
-#include <asm/unaligned.h>
-
-#include <media/v4l2-common.h>
-
-#include "uvcvideo.h"
-
-#define DRIVER_AUTHOR		"Laurent Pinchart " \
-				"<laurent.pinchart@ideasonboard.com>"
-#define DRIVER_DESC		"USB Video Class driver"
-
-unsigned int uvc_clock_param = CLOCK_MONOTONIC;
-unsigned int uvc_no_drop_param;
-static unsigned int uvc_quirks_param = -1;
-unsigned int uvc_trace_param;
-unsigned int uvc_timeout_param = UVC_CTRL_STREAMING_TIMEOUT;
-
-/* ------------------------------------------------------------------------
- * Video formats
- */
-
-static struct uvc_format_desc uvc_fmts[] = {
-	{
-		.name		= "YUV 4:2:2 (YUYV)",
-		.guid		= UVC_GUID_FORMAT_YUY2,
-		.fcc		= V4L2_PIX_FMT_YUYV,
-	},
-	{
-		.name		= "YUV 4:2:2 (YUYV)",
-		.guid		= UVC_GUID_FORMAT_YUY2_ISIGHT,
-		.fcc		= V4L2_PIX_FMT_YUYV,
-	},
-	{
-		.name		= "YUV 4:2:0 (NV12)",
-		.guid		= UVC_GUID_FORMAT_NV12,
-		.fcc		= V4L2_PIX_FMT_NV12,
-	},
-	{
-		.name		= "MJPEG",
-		.guid		= UVC_GUID_FORMAT_MJPEG,
-		.fcc		= V4L2_PIX_FMT_MJPEG,
-	},
-	{
-		.name		= "YVU 4:2:0 (YV12)",
-		.guid		= UVC_GUID_FORMAT_YV12,
-		.fcc		= V4L2_PIX_FMT_YVU420,
-	},
-	{
-		.name		= "YUV 4:2:0 (I420)",
-		.guid		= UVC_GUID_FORMAT_I420,
-		.fcc		= V4L2_PIX_FMT_YUV420,
-	},
-	{
-		.name		= "YUV 4:2:0 (M420)",
-		.guid		= UVC_GUID_FORMAT_M420,
-		.fcc		= V4L2_PIX_FMT_M420,
-	},
-	{
-		.name		= "YUV 4:2:2 (UYVY)",
-		.guid		= UVC_GUID_FORMAT_UYVY,
-		.fcc		= V4L2_PIX_FMT_UYVY,
-	},
-	{
-		.name		= "Greyscale 8-bit (Y800)",
-		.guid		= UVC_GUID_FORMAT_Y800,
-		.fcc		= V4L2_PIX_FMT_GREY,
-	},
-	{
-		.name		= "Greyscale 8-bit (Y8  )",
-		.guid		= UVC_GUID_FORMAT_Y8,
-		.fcc		= V4L2_PIX_FMT_GREY,
-	},
-	{
-		.name		= "Greyscale 10-bit (Y10 )",
-		.guid		= UVC_GUID_FORMAT_Y10,
-		.fcc		= V4L2_PIX_FMT_Y10,
-	},
-	{
-		.name		= "Greyscale 12-bit (Y12 )",
-		.guid		= UVC_GUID_FORMAT_Y12,
-		.fcc		= V4L2_PIX_FMT_Y12,
-	},
-	{
-		.name		= "Greyscale 16-bit (Y16 )",
-		.guid		= UVC_GUID_FORMAT_Y16,
-		.fcc		= V4L2_PIX_FMT_Y16,
-	},
-	{
-		.name		= "RGB Bayer",
-		.guid		= UVC_GUID_FORMAT_BY8,
-		.fcc		= V4L2_PIX_FMT_SBGGR8,
-	},
-	{
-		.name		= "RGB565",
-		.guid		= UVC_GUID_FORMAT_RGBP,
-		.fcc		= V4L2_PIX_FMT_RGB565,
-	},
-	{
-		.name		= "H.264",
-		.guid		= UVC_GUID_FORMAT_H264,
-		.fcc		= V4L2_PIX_FMT_H264,
-	},
-};
-
-/* ------------------------------------------------------------------------
- * Utility functions
- */
-
-struct usb_host_endpoint *uvc_find_endpoint(struct usb_host_interface *alts,
-		__u8 epaddr)
-{
-	struct usb_host_endpoint *ep;
-	unsigned int i;
-
-	for (i = 0; i < alts->desc.bNumEndpoints; ++i) {
-		ep = &alts->endpoint[i];
-		if (ep->desc.bEndpointAddress == epaddr)
-			return ep;
-	}
-
-	return NULL;
-}
-
-static struct uvc_format_desc *uvc_format_by_guid(const __u8 guid[16])
-{
-	unsigned int len = ARRAY_SIZE(uvc_fmts);
-	unsigned int i;
-
-	for (i = 0; i < len; ++i) {
-		if (memcmp(guid, uvc_fmts[i].guid, 16) == 0)
-			return &uvc_fmts[i];
-	}
-
-	return NULL;
-}
-
-static __u32 uvc_colorspace(const __u8 primaries)
-{
-	static const __u8 colorprimaries[] = {
-		0,
-		V4L2_COLORSPACE_SRGB,
-		V4L2_COLORSPACE_470_SYSTEM_M,
-		V4L2_COLORSPACE_470_SYSTEM_BG,
-		V4L2_COLORSPACE_SMPTE170M,
-		V4L2_COLORSPACE_SMPTE240M,
-	};
-
-	if (primaries < ARRAY_SIZE(colorprimaries))
-		return colorprimaries[primaries];
-
-	return 0;
-}
-
-/* Simplify a fraction using a simple continued fraction decomposition. The
- * idea here is to convert fractions such as 333333/10000000 to 1/30 using
- * 32 bit arithmetic only. The algorithm is not perfect and relies upon two
- * arbitrary parameters to remove non-significative terms from the simple
- * continued fraction decomposition. Using 8 and 333 for n_terms and threshold
- * respectively seems to give nice results.
- */
-void uvc_simplify_fraction(uint32_t *numerator, uint32_t *denominator,
-		unsigned int n_terms, unsigned int threshold)
-{
-	uint32_t *an;
-	uint32_t x, y, r;
-	unsigned int i, n;
-
-	an = kmalloc(n_terms * sizeof *an, GFP_KERNEL);
-	if (an == NULL)
-		return;
-
-	/* Convert the fraction to a simple continued fraction. See
-	 * http://mathforum.org/dr.math/faq/faq.fractions.html
-	 * Stop if the current term is bigger than or equal to the given
-	 * threshold.
-	 */
-	x = *numerator;
-	y = *denominator;
-
-	for (n = 0; n < n_terms && y != 0; ++n) {
-		an[n] = x / y;
-		if (an[n] >= threshold) {
-			if (n < 2)
-				n++;
-			break;
-		}
-
-		r = x - an[n] * y;
-		x = y;
-		y = r;
-	}
-
-	/* Expand the simple continued fraction back to an integer fraction. */
-	x = 0;
-	y = 1;
-
-	for (i = n; i > 0; --i) {
-		r = y;
-		y = an[i-1] * y + x;
-		x = r;
-	}
-
-	*numerator = y;
-	*denominator = x;
-	kfree(an);
-}
-
-/* Convert a fraction to a frame interval in 100ns multiples. The idea here is
- * to compute numerator / denominator * 10000000 using 32 bit fixed point
- * arithmetic only.
- */
-uint32_t uvc_fraction_to_interval(uint32_t numerator, uint32_t denominator)
-{
-	uint32_t multiplier;
-
-	/* Saturate the result if the operation would overflow. */
-	if (denominator == 0 ||
-	    numerator/denominator >= ((uint32_t)-1)/10000000)
-		return (uint32_t)-1;
-
-	/* Divide both the denominator and the multiplier by two until
-	 * numerator * multiplier doesn't overflow. If anyone knows a better
-	 * algorithm please let me know.
-	 */
-	multiplier = 10000000;
-	while (numerator > ((uint32_t)-1)/multiplier) {
-		multiplier /= 2;
-		denominator /= 2;
-	}
-
-	return denominator ? numerator * multiplier / denominator : 0;
-}
-
-/* ------------------------------------------------------------------------
- * Terminal and unit management
- */
-
-struct uvc_entity *uvc_entity_by_id(struct uvc_device *dev, int id)
-{
-	struct uvc_entity *entity;
-
-	list_for_each_entry(entity, &dev->entities, list) {
-		if (entity->id == id)
-			return entity;
-	}
-
-	return NULL;
-}
-
-static struct uvc_entity *uvc_entity_by_reference(struct uvc_device *dev,
-	int id, struct uvc_entity *entity)
-{
-	unsigned int i;
-
-	if (entity == NULL)
-		entity = list_entry(&dev->entities, struct uvc_entity, list);
-
-	list_for_each_entry_continue(entity, &dev->entities, list) {
-		for (i = 0; i < entity->bNrInPins; ++i)
-			if (entity->baSourceID[i] == id)
-				return entity;
-	}
-
-	return NULL;
-}
-
-static struct uvc_streaming *uvc_stream_by_id(struct uvc_device *dev, int id)
-{
-	struct uvc_streaming *stream;
-
-	list_for_each_entry(stream, &dev->streams, list) {
-		if (stream->header.bTerminalLink == id)
-			return stream;
-	}
-
-	return NULL;
-}
-
-/* ------------------------------------------------------------------------
- * Descriptors parsing
- */
-
-static int uvc_parse_format(struct uvc_device *dev,
-	struct uvc_streaming *streaming, struct uvc_format *format,
-	__u32 **intervals, unsigned char *buffer, int buflen)
-{
-	struct usb_interface *intf = streaming->intf;
-	struct usb_host_interface *alts = intf->cur_altsetting;
-	struct uvc_format_desc *fmtdesc;
-	struct uvc_frame *frame;
-	const unsigned char *start = buffer;
-	unsigned int interval;
-	unsigned int i, n;
-	__u8 ftype;
-
-	format->type = buffer[2];
-	format->index = buffer[3];
-
-	switch (buffer[2]) {
-	case UVC_VS_FORMAT_UNCOMPRESSED:
-	case UVC_VS_FORMAT_FRAME_BASED:
-		n = buffer[2] == UVC_VS_FORMAT_UNCOMPRESSED ? 27 : 28;
-		if (buflen < n) {
-			uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming "
-			       "interface %d FORMAT error\n",
-			       dev->udev->devnum,
-			       alts->desc.bInterfaceNumber);
-			return -EINVAL;
-		}
-
-		/* Find the format descriptor from its GUID. */
-		fmtdesc = uvc_format_by_guid(&buffer[5]);
-
-		if (fmtdesc != NULL) {
-			strlcpy(format->name, fmtdesc->name,
-				sizeof format->name);
-			format->fcc = fmtdesc->fcc;
-		} else {
-			uvc_printk(KERN_INFO, "Unknown video format %pUl\n",
-				&buffer[5]);
-			snprintf(format->name, sizeof(format->name), "%pUl\n",
-				&buffer[5]);
-			format->fcc = 0;
-		}
-
-		format->bpp = buffer[21];
-		if (buffer[2] == UVC_VS_FORMAT_UNCOMPRESSED) {
-			ftype = UVC_VS_FRAME_UNCOMPRESSED;
-		} else {
-			ftype = UVC_VS_FRAME_FRAME_BASED;
-			if (buffer[27])
-				format->flags = UVC_FMT_FLAG_COMPRESSED;
-		}
-		break;
-
-	case UVC_VS_FORMAT_MJPEG:
-		if (buflen < 11) {
-			uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming "
-			       "interface %d FORMAT error\n",
-			       dev->udev->devnum,
-			       alts->desc.bInterfaceNumber);
-			return -EINVAL;
-		}
-
-		strlcpy(format->name, "MJPEG", sizeof format->name);
-		format->fcc = V4L2_PIX_FMT_MJPEG;
-		format->flags = UVC_FMT_FLAG_COMPRESSED;
-		format->bpp = 0;
-		ftype = UVC_VS_FRAME_MJPEG;
-		break;
-
-	case UVC_VS_FORMAT_DV:
-		if (buflen < 9) {
-			uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming "
-			       "interface %d FORMAT error\n",
-			       dev->udev->devnum,
-			       alts->desc.bInterfaceNumber);
-			return -EINVAL;
-		}
-
-		switch (buffer[8] & 0x7f) {
-		case 0:
-			strlcpy(format->name, "SD-DV", sizeof format->name);
-			break;
-		case 1:
-			strlcpy(format->name, "SDL-DV", sizeof format->name);
-			break;
-		case 2:
-			strlcpy(format->name, "HD-DV", sizeof format->name);
-			break;
-		default:
-			uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming "
-			       "interface %d: unknown DV format %u\n",
-			       dev->udev->devnum,
-			       alts->desc.bInterfaceNumber, buffer[8]);
-			return -EINVAL;
-		}
-
-		strlcat(format->name, buffer[8] & (1 << 7) ? " 60Hz" : " 50Hz",
-			sizeof format->name);
-
-		format->fcc = V4L2_PIX_FMT_DV;
-		format->flags = UVC_FMT_FLAG_COMPRESSED | UVC_FMT_FLAG_STREAM;
-		format->bpp = 0;
-		ftype = 0;
-
-		/* Create a dummy frame descriptor. */
-		frame = &format->frame[0];
-		memset(&format->frame[0], 0, sizeof format->frame[0]);
-		frame->bFrameIntervalType = 1;
-		frame->dwDefaultFrameInterval = 1;
-		frame->dwFrameInterval = *intervals;
-		*(*intervals)++ = 1;
-		format->nframes = 1;
-		break;
-
-	case UVC_VS_FORMAT_MPEG2TS:
-	case UVC_VS_FORMAT_STREAM_BASED:
-		/* Not supported yet. */
-	default:
-		uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming "
-		       "interface %d unsupported format %u\n",
-		       dev->udev->devnum, alts->desc.bInterfaceNumber,
-		       buffer[2]);
-		return -EINVAL;
-	}
-
-	uvc_trace(UVC_TRACE_DESCR, "Found format %s.\n", format->name);
-
-	buflen -= buffer[0];
-	buffer += buffer[0];
-
-	/* Parse the frame descriptors. Only uncompressed, MJPEG and frame
-	 * based formats have frame descriptors.
-	 */
-	while (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE &&
-	       buffer[2] == ftype) {
-		frame = &format->frame[format->nframes];
-		if (ftype != UVC_VS_FRAME_FRAME_BASED)
-			n = buflen > 25 ? buffer[25] : 0;
-		else
-			n = buflen > 21 ? buffer[21] : 0;
-
-		n = n ? n : 3;
-
-		if (buflen < 26 + 4*n) {
-			uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming "
-			       "interface %d FRAME error\n", dev->udev->devnum,
-			       alts->desc.bInterfaceNumber);
-			return -EINVAL;
-		}
-
-		frame->bFrameIndex = buffer[3];
-		frame->bmCapabilities = buffer[4];
-		frame->wWidth = get_unaligned_le16(&buffer[5]);
-		frame->wHeight = get_unaligned_le16(&buffer[7]);
-		frame->dwMinBitRate = get_unaligned_le32(&buffer[9]);
-		frame->dwMaxBitRate = get_unaligned_le32(&buffer[13]);
-		if (ftype != UVC_VS_FRAME_FRAME_BASED) {
-			frame->dwMaxVideoFrameBufferSize =
-				get_unaligned_le32(&buffer[17]);
-			frame->dwDefaultFrameInterval =
-				get_unaligned_le32(&buffer[21]);
-			frame->bFrameIntervalType = buffer[25];
-		} else {
-			frame->dwMaxVideoFrameBufferSize = 0;
-			frame->dwDefaultFrameInterval =
-				get_unaligned_le32(&buffer[17]);
-			frame->bFrameIntervalType = buffer[21];
-		}
-		frame->dwFrameInterval = *intervals;
-
-		/* Several UVC chipsets screw up dwMaxVideoFrameBufferSize
-		 * completely. Observed behaviours range from setting the
-		 * value to 1.1x the actual frame size to hardwiring the
-		 * 16 low bits to 0. This results in a higher than necessary
-		 * memory usage as well as a wrong image size information. For
-		 * uncompressed formats this can be fixed by computing the
-		 * value from the frame size.
-		 */
-		if (!(format->flags & UVC_FMT_FLAG_COMPRESSED))
-			frame->dwMaxVideoFrameBufferSize = format->bpp
-				* frame->wWidth * frame->wHeight / 8;
-
-		/* Some bogus devices report dwMinFrameInterval equal to
-		 * dwMaxFrameInterval and have dwFrameIntervalStep set to
-		 * zero. Setting all null intervals to 1 fixes the problem and
-		 * some other divisions by zero that could happen.
-		 */
-		for (i = 0; i < n; ++i) {
-			interval = get_unaligned_le32(&buffer[26+4*i]);
-			*(*intervals)++ = interval ? interval : 1;
-		}
-
-		/* Make sure that the default frame interval stays between
-		 * the boundaries.
-		 */
-		n -= frame->bFrameIntervalType ? 1 : 2;
-		frame->dwDefaultFrameInterval =
-			min(frame->dwFrameInterval[n],
-			    max(frame->dwFrameInterval[0],
-				frame->dwDefaultFrameInterval));
-
-		if (dev->quirks & UVC_QUIRK_RESTRICT_FRAME_RATE) {
-			frame->bFrameIntervalType = 1;
-			frame->dwFrameInterval[0] =
-				frame->dwDefaultFrameInterval;
-		}
-
-		uvc_trace(UVC_TRACE_DESCR, "- %ux%u (%u.%u fps)\n",
-			frame->wWidth, frame->wHeight,
-			10000000/frame->dwDefaultFrameInterval,
-			(100000000/frame->dwDefaultFrameInterval)%10);
-
-		format->nframes++;
-		buflen -= buffer[0];
-		buffer += buffer[0];
-	}
-
-	if (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE &&
-	    buffer[2] == UVC_VS_STILL_IMAGE_FRAME) {
-		buflen -= buffer[0];
-		buffer += buffer[0];
-	}
-
-	if (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE &&
-	    buffer[2] == UVC_VS_COLORFORMAT) {
-		if (buflen < 6) {
-			uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming "
-			       "interface %d COLORFORMAT error\n",
-			       dev->udev->devnum,
-			       alts->desc.bInterfaceNumber);
-			return -EINVAL;
-		}
-
-		format->colorspace = uvc_colorspace(buffer[3]);
-
-		buflen -= buffer[0];
-		buffer += buffer[0];
-	}
-
-	return buffer - start;
-}
-
-static int uvc_parse_streaming(struct uvc_device *dev,
-	struct usb_interface *intf)
-{
-	struct uvc_streaming *streaming = NULL;
-	struct uvc_format *format;
-	struct uvc_frame *frame;
-	struct usb_host_interface *alts = &intf->altsetting[0];
-	unsigned char *_buffer, *buffer = alts->extra;
-	int _buflen, buflen = alts->extralen;
-	unsigned int nformats = 0, nframes = 0, nintervals = 0;
-	unsigned int size, i, n, p;
-	__u32 *interval;
-	__u16 psize;
-	int ret = -EINVAL;
-
-	if (intf->cur_altsetting->desc.bInterfaceSubClass
-		!= UVC_SC_VIDEOSTREAMING) {
-		uvc_trace(UVC_TRACE_DESCR, "device %d interface %d isn't a "
-			"video streaming interface\n", dev->udev->devnum,
-			intf->altsetting[0].desc.bInterfaceNumber);
-		return -EINVAL;
-	}
-
-	if (usb_driver_claim_interface(&uvc_driver.driver, intf, dev)) {
-		uvc_trace(UVC_TRACE_DESCR, "device %d interface %d is already "
-			"claimed\n", dev->udev->devnum,
-			intf->altsetting[0].desc.bInterfaceNumber);
-		return -EINVAL;
-	}
-
-	streaming = kzalloc(sizeof *streaming, GFP_KERNEL);
-	if (streaming == NULL) {
-		usb_driver_release_interface(&uvc_driver.driver, intf);
-		return -EINVAL;
-	}
-
-	mutex_init(&streaming->mutex);
-	streaming->dev = dev;
-	streaming->intf = usb_get_intf(intf);
-	streaming->intfnum = intf->cur_altsetting->desc.bInterfaceNumber;
-
-	/* The Pico iMage webcam has its class-specific interface descriptors
-	 * after the endpoint descriptors.
-	 */
-	if (buflen == 0) {
-		for (i = 0; i < alts->desc.bNumEndpoints; ++i) {
-			struct usb_host_endpoint *ep = &alts->endpoint[i];
-
-			if (ep->extralen == 0)
-				continue;
-
-			if (ep->extralen > 2 &&
-			    ep->extra[1] == USB_DT_CS_INTERFACE) {
-				uvc_trace(UVC_TRACE_DESCR, "trying extra data "
-					"from endpoint %u.\n", i);
-				buffer = alts->endpoint[i].extra;
-				buflen = alts->endpoint[i].extralen;
-				break;
-			}
-		}
-	}
-
-	/* Skip the standard interface descriptors. */
-	while (buflen > 2 && buffer[1] != USB_DT_CS_INTERFACE) {
-		buflen -= buffer[0];
-		buffer += buffer[0];
-	}
-
-	if (buflen <= 2) {
-		uvc_trace(UVC_TRACE_DESCR, "no class-specific streaming "
-			"interface descriptors found.\n");
-		goto error;
-	}
-
-	/* Parse the header descriptor. */
-	switch (buffer[2]) {
-	case UVC_VS_OUTPUT_HEADER:
-		streaming->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
-		size = 9;
-		break;
-
-	case UVC_VS_INPUT_HEADER:
-		streaming->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-		size = 13;
-		break;
-
-	default:
-		uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming interface "
-			"%d HEADER descriptor not found.\n", dev->udev->devnum,
-			alts->desc.bInterfaceNumber);
-		goto error;
-	}
-
-	p = buflen >= 4 ? buffer[3] : 0;
-	n = buflen >= size ? buffer[size-1] : 0;
-
-	if (buflen < size + p*n) {
-		uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming "
-			"interface %d HEADER descriptor is invalid.\n",
-			dev->udev->devnum, alts->desc.bInterfaceNumber);
-		goto error;
-	}
-
-	streaming->header.bNumFormats = p;
-	streaming->header.bEndpointAddress = buffer[6];
-	if (buffer[2] == UVC_VS_INPUT_HEADER) {
-		streaming->header.bmInfo = buffer[7];
-		streaming->header.bTerminalLink = buffer[8];
-		streaming->header.bStillCaptureMethod = buffer[9];
-		streaming->header.bTriggerSupport = buffer[10];
-		streaming->header.bTriggerUsage = buffer[11];
-	} else {
-		streaming->header.bTerminalLink = buffer[7];
-	}
-	streaming->header.bControlSize = n;
-
-	streaming->header.bmaControls = kmemdup(&buffer[size], p * n,
-						GFP_KERNEL);
-	if (streaming->header.bmaControls == NULL) {
-		ret = -ENOMEM;
-		goto error;
-	}
-
-	buflen -= buffer[0];
-	buffer += buffer[0];
-
-	_buffer = buffer;
-	_buflen = buflen;
-
-	/* Count the format and frame descriptors. */
-	while (_buflen > 2 && _buffer[1] == USB_DT_CS_INTERFACE) {
-		switch (_buffer[2]) {
-		case UVC_VS_FORMAT_UNCOMPRESSED:
-		case UVC_VS_FORMAT_MJPEG:
-		case UVC_VS_FORMAT_FRAME_BASED:
-			nformats++;
-			break;
-
-		case UVC_VS_FORMAT_DV:
-			/* DV format has no frame descriptor. We will create a
-			 * dummy frame descriptor with a dummy frame interval.
-			 */
-			nformats++;
-			nframes++;
-			nintervals++;
-			break;
-
-		case UVC_VS_FORMAT_MPEG2TS:
-		case UVC_VS_FORMAT_STREAM_BASED:
-			uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming "
-				"interface %d FORMAT %u is not supported.\n",
-				dev->udev->devnum,
-				alts->desc.bInterfaceNumber, _buffer[2]);
-			break;
-
-		case UVC_VS_FRAME_UNCOMPRESSED:
-		case UVC_VS_FRAME_MJPEG:
-			nframes++;
-			if (_buflen > 25)
-				nintervals += _buffer[25] ? _buffer[25] : 3;
-			break;
-
-		case UVC_VS_FRAME_FRAME_BASED:
-			nframes++;
-			if (_buflen > 21)
-				nintervals += _buffer[21] ? _buffer[21] : 3;
-			break;
-		}
-
-		_buflen -= _buffer[0];
-		_buffer += _buffer[0];
-	}
-
-	if (nformats == 0) {
-		uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming interface "
-			"%d has no supported formats defined.\n",
-			dev->udev->devnum, alts->desc.bInterfaceNumber);
-		goto error;
-	}
-
-	size = nformats * sizeof *format + nframes * sizeof *frame
-	     + nintervals * sizeof *interval;
-	format = kzalloc(size, GFP_KERNEL);
-	if (format == NULL) {
-		ret = -ENOMEM;
-		goto error;
-	}
-
-	frame = (struct uvc_frame *)&format[nformats];
-	interval = (__u32 *)&frame[nframes];
-
-	streaming->format = format;
-	streaming->nformats = nformats;
-
-	/* Parse the format descriptors. */
-	while (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE) {
-		switch (buffer[2]) {
-		case UVC_VS_FORMAT_UNCOMPRESSED:
-		case UVC_VS_FORMAT_MJPEG:
-		case UVC_VS_FORMAT_DV:
-		case UVC_VS_FORMAT_FRAME_BASED:
-			format->frame = frame;
-			ret = uvc_parse_format(dev, streaming, format,
-				&interval, buffer, buflen);
-			if (ret < 0)
-				goto error;
-
-			frame += format->nframes;
-			format++;
-
-			buflen -= ret;
-			buffer += ret;
-			continue;
-
-		default:
-			break;
-		}
-
-		buflen -= buffer[0];
-		buffer += buffer[0];
-	}
-
-	if (buflen)
-		uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming interface "
-			"%d has %u bytes of trailing descriptor garbage.\n",
-			dev->udev->devnum, alts->desc.bInterfaceNumber, buflen);
-
-	/* Parse the alternate settings to find the maximum bandwidth. */
-	for (i = 0; i < intf->num_altsetting; ++i) {
-		struct usb_host_endpoint *ep;
-		alts = &intf->altsetting[i];
-		ep = uvc_find_endpoint(alts,
-				streaming->header.bEndpointAddress);
-		if (ep == NULL)
-			continue;
-
-		psize = le16_to_cpu(ep->desc.wMaxPacketSize);
-		psize = (psize & 0x07ff) * (1 + ((psize >> 11) & 3));
-		if (psize > streaming->maxpsize)
-			streaming->maxpsize = psize;
-	}
-
-	list_add_tail(&streaming->list, &dev->streams);
-	return 0;
-
-error:
-	usb_driver_release_interface(&uvc_driver.driver, intf);
-	usb_put_intf(intf);
-	kfree(streaming->format);
-	kfree(streaming->header.bmaControls);
-	kfree(streaming);
-	return ret;
-}
-
-static struct uvc_entity *uvc_alloc_entity(u16 type, u8 id,
-		unsigned int num_pads, unsigned int extra_size)
-{
-	struct uvc_entity *entity;
-	unsigned int num_inputs;
-	unsigned int size;
-	unsigned int i;
-
-	extra_size = ALIGN(extra_size, sizeof(*entity->pads));
-	num_inputs = (type & UVC_TERM_OUTPUT) ? num_pads : num_pads - 1;
-	size = sizeof(*entity) + extra_size + sizeof(*entity->pads) * num_pads
-	     + num_inputs;
-	entity = kzalloc(size, GFP_KERNEL);
-	if (entity == NULL)
-		return NULL;
-
-	entity->id = id;
-	entity->type = type;
-
-	entity->num_links = 0;
-	entity->num_pads = num_pads;
-	entity->pads = ((void *)(entity + 1)) + extra_size;
-
-	for (i = 0; i < num_inputs; ++i)
-		entity->pads[i].flags = MEDIA_PAD_FL_SINK;
-	if (!UVC_ENTITY_IS_OTERM(entity))
-		entity->pads[num_pads-1].flags = MEDIA_PAD_FL_SOURCE;
-
-	entity->bNrInPins = num_inputs;
-	entity->baSourceID = (__u8 *)(&entity->pads[num_pads]);
-
-	return entity;
-}
-
-/* Parse vendor-specific extensions. */
-static int uvc_parse_vendor_control(struct uvc_device *dev,
-	const unsigned char *buffer, int buflen)
-{
-	struct usb_device *udev = dev->udev;
-	struct usb_host_interface *alts = dev->intf->cur_altsetting;
-	struct uvc_entity *unit;
-	unsigned int n, p;
-	int handled = 0;
-
-	switch (le16_to_cpu(dev->udev->descriptor.idVendor)) {
-	case 0x046d:		/* Logitech */
-		if (buffer[1] != 0x41 || buffer[2] != 0x01)
-			break;
-
-		/* Logitech implements several vendor specific functions
-		 * through vendor specific extension units (LXU).
-		 *
-		 * The LXU descriptors are similar to XU descriptors
-		 * (see "USB Device Video Class for Video Devices", section
-		 * 3.7.2.6 "Extension Unit Descriptor") with the following
-		 * differences:
-		 *
-		 * ----------------------------------------------------------
-		 * 0		bLength		1	 Number
-		 *	Size of this descriptor, in bytes: 24+p+n*2
-		 * ----------------------------------------------------------
-		 * 23+p+n	bmControlsType	N	Bitmap
-		 * 	Individual bits in the set are defined:
-		 * 	0: Absolute
-		 * 	1: Relative
-		 *
-		 * 	This bitset is mapped exactly the same as bmControls.
-		 * ----------------------------------------------------------
-		 * 23+p+n*2	bReserved	1	Boolean
-		 * ----------------------------------------------------------
-		 * 24+p+n*2	iExtension	1	Index
-		 *	Index of a string descriptor that describes this
-		 *	extension unit.
-		 * ----------------------------------------------------------
-		 */
-		p = buflen >= 22 ? buffer[21] : 0;
-		n = buflen >= 25 + p ? buffer[22+p] : 0;
-
-		if (buflen < 25 + p + 2*n) {
-			uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol "
-				"interface %d EXTENSION_UNIT error\n",
-				udev->devnum, alts->desc.bInterfaceNumber);
-			break;
-		}
-
-		unit = uvc_alloc_entity(UVC_VC_EXTENSION_UNIT, buffer[3],
-					p + 1, 2*n);
-		if (unit == NULL)
-			return -ENOMEM;
-
-		memcpy(unit->extension.guidExtensionCode, &buffer[4], 16);
-		unit->extension.bNumControls = buffer[20];
-		memcpy(unit->baSourceID, &buffer[22], p);
-		unit->extension.bControlSize = buffer[22+p];
-		unit->extension.bmControls = (__u8 *)unit + sizeof(*unit);
-		unit->extension.bmControlsType = (__u8 *)unit + sizeof(*unit)
-					       + n;
-		memcpy(unit->extension.bmControls, &buffer[23+p], 2*n);
-
-		if (buffer[24+p+2*n] != 0)
-			usb_string(udev, buffer[24+p+2*n], unit->name,
-				   sizeof unit->name);
-		else
-			sprintf(unit->name, "Extension %u", buffer[3]);
-
-		list_add_tail(&unit->list, &dev->entities);
-		handled = 1;
-		break;
-	}
-
-	return handled;
-}
-
-static int uvc_parse_standard_control(struct uvc_device *dev,
-	const unsigned char *buffer, int buflen)
-{
-	struct usb_device *udev = dev->udev;
-	struct uvc_entity *unit, *term;
-	struct usb_interface *intf;
-	struct usb_host_interface *alts = dev->intf->cur_altsetting;
-	unsigned int i, n, p, len;
-	__u16 type;
-
-	switch (buffer[2]) {
-	case UVC_VC_HEADER:
-		n = buflen >= 12 ? buffer[11] : 0;
-
-		if (buflen < 12 || buflen < 12 + n) {
-			uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol "
-				"interface %d HEADER error\n", udev->devnum,
-				alts->desc.bInterfaceNumber);
-			return -EINVAL;
-		}
-
-		dev->uvc_version = get_unaligned_le16(&buffer[3]);
-		dev->clock_frequency = get_unaligned_le32(&buffer[7]);
-
-		/* Parse all USB Video Streaming interfaces. */
-		for (i = 0; i < n; ++i) {
-			intf = usb_ifnum_to_if(udev, buffer[12+i]);
-			if (intf == NULL) {
-				uvc_trace(UVC_TRACE_DESCR, "device %d "
-					"interface %d doesn't exists\n",
-					udev->devnum, i);
-				continue;
-			}
-
-			uvc_parse_streaming(dev, intf);
-		}
-		break;
-
-	case UVC_VC_INPUT_TERMINAL:
-		if (buflen < 8) {
-			uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol "
-				"interface %d INPUT_TERMINAL error\n",
-				udev->devnum, alts->desc.bInterfaceNumber);
-			return -EINVAL;
-		}
-
-		/* Make sure the terminal type MSB is not null, otherwise it
-		 * could be confused with a unit.
-		 */
-		type = get_unaligned_le16(&buffer[4]);
-		if ((type & 0xff00) == 0) {
-			uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol "
-				"interface %d INPUT_TERMINAL %d has invalid "
-				"type 0x%04x, skipping\n", udev->devnum,
-				alts->desc.bInterfaceNumber,
-				buffer[3], type);
-			return 0;
-		}
-
-		n = 0;
-		p = 0;
-		len = 8;
-
-		if (type == UVC_ITT_CAMERA) {
-			n = buflen >= 15 ? buffer[14] : 0;
-			len = 15;
-
-		} else if (type == UVC_ITT_MEDIA_TRANSPORT_INPUT) {
-			n = buflen >= 9 ? buffer[8] : 0;
-			p = buflen >= 10 + n ? buffer[9+n] : 0;
-			len = 10;
-		}
-
-		if (buflen < len + n + p) {
-			uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol "
-				"interface %d INPUT_TERMINAL error\n",
-				udev->devnum, alts->desc.bInterfaceNumber);
-			return -EINVAL;
-		}
-
-		term = uvc_alloc_entity(type | UVC_TERM_INPUT, buffer[3],
-					1, n + p);
-		if (term == NULL)
-			return -ENOMEM;
-
-		if (UVC_ENTITY_TYPE(term) == UVC_ITT_CAMERA) {
-			term->camera.bControlSize = n;
-			term->camera.bmControls = (__u8 *)term + sizeof *term;
-			term->camera.wObjectiveFocalLengthMin =
-				get_unaligned_le16(&buffer[8]);
-			term->camera.wObjectiveFocalLengthMax =
-				get_unaligned_le16(&buffer[10]);
-			term->camera.wOcularFocalLength =
-				get_unaligned_le16(&buffer[12]);
-			memcpy(term->camera.bmControls, &buffer[15], n);
-		} else if (UVC_ENTITY_TYPE(term) ==
-			   UVC_ITT_MEDIA_TRANSPORT_INPUT) {
-			term->media.bControlSize = n;
-			term->media.bmControls = (__u8 *)term + sizeof *term;
-			term->media.bTransportModeSize = p;
-			term->media.bmTransportModes = (__u8 *)term
-						     + sizeof *term + n;
-			memcpy(term->media.bmControls, &buffer[9], n);
-			memcpy(term->media.bmTransportModes, &buffer[10+n], p);
-		}
-
-		if (buffer[7] != 0)
-			usb_string(udev, buffer[7], term->name,
-				   sizeof term->name);
-		else if (UVC_ENTITY_TYPE(term) == UVC_ITT_CAMERA)
-			sprintf(term->name, "Camera %u", buffer[3]);
-		else if (UVC_ENTITY_TYPE(term) == UVC_ITT_MEDIA_TRANSPORT_INPUT)
-			sprintf(term->name, "Media %u", buffer[3]);
-		else
-			sprintf(term->name, "Input %u", buffer[3]);
-
-		list_add_tail(&term->list, &dev->entities);
-		break;
-
-	case UVC_VC_OUTPUT_TERMINAL:
-		if (buflen < 9) {
-			uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol "
-				"interface %d OUTPUT_TERMINAL error\n",
-				udev->devnum, alts->desc.bInterfaceNumber);
-			return -EINVAL;
-		}
-
-		/* Make sure the terminal type MSB is not null, otherwise it
-		 * could be confused with a unit.
-		 */
-		type = get_unaligned_le16(&buffer[4]);
-		if ((type & 0xff00) == 0) {
-			uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol "
-				"interface %d OUTPUT_TERMINAL %d has invalid "
-				"type 0x%04x, skipping\n", udev->devnum,
-				alts->desc.bInterfaceNumber, buffer[3], type);
-			return 0;
-		}
-
-		term = uvc_alloc_entity(type | UVC_TERM_OUTPUT, buffer[3],
-					1, 0);
-		if (term == NULL)
-			return -ENOMEM;
-
-		memcpy(term->baSourceID, &buffer[7], 1);
-
-		if (buffer[8] != 0)
-			usb_string(udev, buffer[8], term->name,
-				   sizeof term->name);
-		else
-			sprintf(term->name, "Output %u", buffer[3]);
-
-		list_add_tail(&term->list, &dev->entities);
-		break;
-
-	case UVC_VC_SELECTOR_UNIT:
-		p = buflen >= 5 ? buffer[4] : 0;
-
-		if (buflen < 5 || buflen < 6 + p) {
-			uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol "
-				"interface %d SELECTOR_UNIT error\n",
-				udev->devnum, alts->desc.bInterfaceNumber);
-			return -EINVAL;
-		}
-
-		unit = uvc_alloc_entity(buffer[2], buffer[3], p + 1, 0);
-		if (unit == NULL)
-			return -ENOMEM;
-
-		memcpy(unit->baSourceID, &buffer[5], p);
-
-		if (buffer[5+p] != 0)
-			usb_string(udev, buffer[5+p], unit->name,
-				   sizeof unit->name);
-		else
-			sprintf(unit->name, "Selector %u", buffer[3]);
-
-		list_add_tail(&unit->list, &dev->entities);
-		break;
-
-	case UVC_VC_PROCESSING_UNIT:
-		n = buflen >= 8 ? buffer[7] : 0;
-		p = dev->uvc_version >= 0x0110 ? 10 : 9;
-
-		if (buflen < p + n) {
-			uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol "
-				"interface %d PROCESSING_UNIT error\n",
-				udev->devnum, alts->desc.bInterfaceNumber);
-			return -EINVAL;
-		}
-
-		unit = uvc_alloc_entity(buffer[2], buffer[3], 2, n);
-		if (unit == NULL)
-			return -ENOMEM;
-
-		memcpy(unit->baSourceID, &buffer[4], 1);
-		unit->processing.wMaxMultiplier =
-			get_unaligned_le16(&buffer[5]);
-		unit->processing.bControlSize = buffer[7];
-		unit->processing.bmControls = (__u8 *)unit + sizeof *unit;
-		memcpy(unit->processing.bmControls, &buffer[8], n);
-		if (dev->uvc_version >= 0x0110)
-			unit->processing.bmVideoStandards = buffer[9+n];
-
-		if (buffer[8+n] != 0)
-			usb_string(udev, buffer[8+n], unit->name,
-				   sizeof unit->name);
-		else
-			sprintf(unit->name, "Processing %u", buffer[3]);
-
-		list_add_tail(&unit->list, &dev->entities);
-		break;
-
-	case UVC_VC_EXTENSION_UNIT:
-		p = buflen >= 22 ? buffer[21] : 0;
-		n = buflen >= 24 + p ? buffer[22+p] : 0;
-
-		if (buflen < 24 + p + n) {
-			uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol "
-				"interface %d EXTENSION_UNIT error\n",
-				udev->devnum, alts->desc.bInterfaceNumber);
-			return -EINVAL;
-		}
-
-		unit = uvc_alloc_entity(buffer[2], buffer[3], p + 1, n);
-		if (unit == NULL)
-			return -ENOMEM;
-
-		memcpy(unit->extension.guidExtensionCode, &buffer[4], 16);
-		unit->extension.bNumControls = buffer[20];
-		memcpy(unit->baSourceID, &buffer[22], p);
-		unit->extension.bControlSize = buffer[22+p];
-		unit->extension.bmControls = (__u8 *)unit + sizeof *unit;
-		memcpy(unit->extension.bmControls, &buffer[23+p], n);
-
-		if (buffer[23+p+n] != 0)
-			usb_string(udev, buffer[23+p+n], unit->name,
-				   sizeof unit->name);
-		else
-			sprintf(unit->name, "Extension %u", buffer[3]);
-
-		list_add_tail(&unit->list, &dev->entities);
-		break;
-
-	default:
-		uvc_trace(UVC_TRACE_DESCR, "Found an unknown CS_INTERFACE "
-			"descriptor (%u)\n", buffer[2]);
-		break;
-	}
-
-	return 0;
-}
-
-static int uvc_parse_control(struct uvc_device *dev)
-{
-	struct usb_host_interface *alts = dev->intf->cur_altsetting;
-	unsigned char *buffer = alts->extra;
-	int buflen = alts->extralen;
-	int ret;
-
-	/* Parse the default alternate setting only, as the UVC specification
-	 * defines a single alternate setting, the default alternate setting
-	 * zero.
-	 */
-
-	while (buflen > 2) {
-		if (uvc_parse_vendor_control(dev, buffer, buflen) ||
-		    buffer[1] != USB_DT_CS_INTERFACE)
-			goto next_descriptor;
-
-		if ((ret = uvc_parse_standard_control(dev, buffer, buflen)) < 0)
-			return ret;
-
-next_descriptor:
-		buflen -= buffer[0];
-		buffer += buffer[0];
-	}
-
-	/* Check if the optional status endpoint is present. Built-in iSight
-	 * webcams have an interrupt endpoint but spit proprietary data that
-	 * don't conform to the UVC status endpoint messages. Don't try to
-	 * handle the interrupt endpoint for those cameras.
-	 */
-	if (alts->desc.bNumEndpoints == 1 &&
-	    !(dev->quirks & UVC_QUIRK_BUILTIN_ISIGHT)) {
-		struct usb_host_endpoint *ep = &alts->endpoint[0];
-		struct usb_endpoint_descriptor *desc = &ep->desc;
-
-		if (usb_endpoint_is_int_in(desc) &&
-		    le16_to_cpu(desc->wMaxPacketSize) >= 8 &&
-		    desc->bInterval != 0) {
-			uvc_trace(UVC_TRACE_DESCR, "Found a Status endpoint "
-				"(addr %02x).\n", desc->bEndpointAddress);
-			dev->int_ep = ep;
-		}
-	}
-
-	return 0;
-}
-
-/* ------------------------------------------------------------------------
- * UVC device scan
- */
-
-/*
- * Scan the UVC descriptors to locate a chain starting at an Output Terminal
- * and containing the following units:
- *
- * - one or more Output Terminals (USB Streaming or Display)
- * - zero or one Processing Unit
- * - zero, one or more single-input Selector Units
- * - zero or one multiple-input Selector Units, provided all inputs are
- *   connected to input terminals
- * - zero, one or mode single-input Extension Units
- * - one or more Input Terminals (Camera, External or USB Streaming)
- *
- * The terminal and units must match on of the following structures:
- *
- * ITT_*(0) -> +---------+    +---------+    +---------+ -> TT_STREAMING(0)
- * ...         | SU{0,1} | -> | PU{0,1} | -> | XU{0,n} |    ...
- * ITT_*(n) -> +---------+    +---------+    +---------+ -> TT_STREAMING(n)
- *
- *                 +---------+    +---------+ -> OTT_*(0)
- * TT_STREAMING -> | PU{0,1} | -> | XU{0,n} |    ...
- *                 +---------+    +---------+ -> OTT_*(n)
- *
- * The Processing Unit and Extension Units can be in any order. Additional
- * Extension Units connected to the main chain as single-unit branches are
- * also supported. Single-input Selector Units are ignored.
- */
-static int uvc_scan_chain_entity(struct uvc_video_chain *chain,
-	struct uvc_entity *entity)
-{
-	switch (UVC_ENTITY_TYPE(entity)) {
-	case UVC_VC_EXTENSION_UNIT:
-		if (uvc_trace_param & UVC_TRACE_PROBE)
-			printk(" <- XU %d", entity->id);
-
-		if (entity->bNrInPins != 1) {
-			uvc_trace(UVC_TRACE_DESCR, "Extension unit %d has more "
-				"than 1 input pin.\n", entity->id);
-			return -1;
-		}
-
-		break;
-
-	case UVC_VC_PROCESSING_UNIT:
-		if (uvc_trace_param & UVC_TRACE_PROBE)
-			printk(" <- PU %d", entity->id);
-
-		if (chain->processing != NULL) {
-			uvc_trace(UVC_TRACE_DESCR, "Found multiple "
-				"Processing Units in chain.\n");
-			return -1;
-		}
-
-		chain->processing = entity;
-		break;
-
-	case UVC_VC_SELECTOR_UNIT:
-		if (uvc_trace_param & UVC_TRACE_PROBE)
-			printk(" <- SU %d", entity->id);
-
-		/* Single-input selector units are ignored. */
-		if (entity->bNrInPins == 1)
-			break;
-
-		if (chain->selector != NULL) {
-			uvc_trace(UVC_TRACE_DESCR, "Found multiple Selector "
-				"Units in chain.\n");
-			return -1;
-		}
-
-		chain->selector = entity;
-		break;
-
-	case UVC_ITT_VENDOR_SPECIFIC:
-	case UVC_ITT_CAMERA:
-	case UVC_ITT_MEDIA_TRANSPORT_INPUT:
-		if (uvc_trace_param & UVC_TRACE_PROBE)
-			printk(" <- IT %d\n", entity->id);
-
-		break;
-
-	case UVC_OTT_VENDOR_SPECIFIC:
-	case UVC_OTT_DISPLAY:
-	case UVC_OTT_MEDIA_TRANSPORT_OUTPUT:
-		if (uvc_trace_param & UVC_TRACE_PROBE)
-			printk(" OT %d", entity->id);
-
-		break;
-
-	case UVC_TT_STREAMING:
-		if (UVC_ENTITY_IS_ITERM(entity)) {
-			if (uvc_trace_param & UVC_TRACE_PROBE)
-				printk(" <- IT %d\n", entity->id);
-		} else {
-			if (uvc_trace_param & UVC_TRACE_PROBE)
-				printk(" OT %d", entity->id);
-		}
-
-		break;
-
-	default:
-		uvc_trace(UVC_TRACE_DESCR, "Unsupported entity type "
-			"0x%04x found in chain.\n", UVC_ENTITY_TYPE(entity));
-		return -1;
-	}
-
-	list_add_tail(&entity->chain, &chain->entities);
-	return 0;
-}
-
-static int uvc_scan_chain_forward(struct uvc_video_chain *chain,
-	struct uvc_entity *entity, struct uvc_entity *prev)
-{
-	struct uvc_entity *forward;
-	int found;
-
-	/* Forward scan */
-	forward = NULL;
-	found = 0;
-
-	while (1) {
-		forward = uvc_entity_by_reference(chain->dev, entity->id,
-			forward);
-		if (forward == NULL)
-			break;
-		if (forward == prev)
-			continue;
-
-		switch (UVC_ENTITY_TYPE(forward)) {
-		case UVC_VC_EXTENSION_UNIT:
-			if (forward->bNrInPins != 1) {
-				uvc_trace(UVC_TRACE_DESCR, "Extension unit %d "
-					  "has more than 1 input pin.\n",
-					  entity->id);
-				return -EINVAL;
-			}
-
-			list_add_tail(&forward->chain, &chain->entities);
-			if (uvc_trace_param & UVC_TRACE_PROBE) {
-				if (!found)
-					printk(" (->");
-
-				printk(" XU %d", forward->id);
-				found = 1;
-			}
-			break;
-
-		case UVC_OTT_VENDOR_SPECIFIC:
-		case UVC_OTT_DISPLAY:
-		case UVC_OTT_MEDIA_TRANSPORT_OUTPUT:
-		case UVC_TT_STREAMING:
-			if (UVC_ENTITY_IS_ITERM(forward)) {
-				uvc_trace(UVC_TRACE_DESCR, "Unsupported input "
-					"terminal %u.\n", forward->id);
-				return -EINVAL;
-			}
-
-			list_add_tail(&forward->chain, &chain->entities);
-			if (uvc_trace_param & UVC_TRACE_PROBE) {
-				if (!found)
-					printk(" (->");
-
-				printk(" OT %d", forward->id);
-				found = 1;
-			}
-			break;
-		}
-	}
-	if (found)
-		printk(")");
-
-	return 0;
-}
-
-static int uvc_scan_chain_backward(struct uvc_video_chain *chain,
-	struct uvc_entity **_entity)
-{
-	struct uvc_entity *entity = *_entity;
-	struct uvc_entity *term;
-	int id = -EINVAL, i;
-
-	switch (UVC_ENTITY_TYPE(entity)) {
-	case UVC_VC_EXTENSION_UNIT:
-	case UVC_VC_PROCESSING_UNIT:
-		id = entity->baSourceID[0];
-		break;
-
-	case UVC_VC_SELECTOR_UNIT:
-		/* Single-input selector units are ignored. */
-		if (entity->bNrInPins == 1) {
-			id = entity->baSourceID[0];
-			break;
-		}
-
-		if (uvc_trace_param & UVC_TRACE_PROBE)
-			printk(" <- IT");
-
-		chain->selector = entity;
-		for (i = 0; i < entity->bNrInPins; ++i) {
-			id = entity->baSourceID[i];
-			term = uvc_entity_by_id(chain->dev, id);
-			if (term == NULL || !UVC_ENTITY_IS_ITERM(term)) {
-				uvc_trace(UVC_TRACE_DESCR, "Selector unit %d "
-					"input %d isn't connected to an "
-					"input terminal\n", entity->id, i);
-				return -1;
-			}
-
-			if (uvc_trace_param & UVC_TRACE_PROBE)
-				printk(" %d", term->id);
-
-			list_add_tail(&term->chain, &chain->entities);
-			uvc_scan_chain_forward(chain, term, entity);
-		}
-
-		if (uvc_trace_param & UVC_TRACE_PROBE)
-			printk("\n");
-
-		id = 0;
-		break;
-
-	case UVC_ITT_VENDOR_SPECIFIC:
-	case UVC_ITT_CAMERA:
-	case UVC_ITT_MEDIA_TRANSPORT_INPUT:
-	case UVC_OTT_VENDOR_SPECIFIC:
-	case UVC_OTT_DISPLAY:
-	case UVC_OTT_MEDIA_TRANSPORT_OUTPUT:
-	case UVC_TT_STREAMING:
-		id = UVC_ENTITY_IS_OTERM(entity) ? entity->baSourceID[0] : 0;
-		break;
-	}
-
-	if (id <= 0) {
-		*_entity = NULL;
-		return id;
-	}
-
-	entity = uvc_entity_by_id(chain->dev, id);
-	if (entity == NULL) {
-		uvc_trace(UVC_TRACE_DESCR, "Found reference to "
-			"unknown entity %d.\n", id);
-		return -EINVAL;
-	}
-
-	*_entity = entity;
-	return 0;
-}
-
-static int uvc_scan_chain(struct uvc_video_chain *chain,
-			  struct uvc_entity *term)
-{
-	struct uvc_entity *entity, *prev;
-
-	uvc_trace(UVC_TRACE_PROBE, "Scanning UVC chain:");
-
-	entity = term;
-	prev = NULL;
-
-	while (entity != NULL) {
-		/* Entity must not be part of an existing chain */
-		if (entity->chain.next || entity->chain.prev) {
-			uvc_trace(UVC_TRACE_DESCR, "Found reference to "
-				"entity %d already in chain.\n", entity->id);
-			return -EINVAL;
-		}
-
-		/* Process entity */
-		if (uvc_scan_chain_entity(chain, entity) < 0)
-			return -EINVAL;
-
-		/* Forward scan */
-		if (uvc_scan_chain_forward(chain, entity, prev) < 0)
-			return -EINVAL;
-
-		/* Backward scan */
-		prev = entity;
-		if (uvc_scan_chain_backward(chain, &entity) < 0)
-			return -EINVAL;
-	}
-
-	return 0;
-}
-
-static unsigned int uvc_print_terms(struct list_head *terms, u16 dir,
-		char *buffer)
-{
-	struct uvc_entity *term;
-	unsigned int nterms = 0;
-	char *p = buffer;
-
-	list_for_each_entry(term, terms, chain) {
-		if (!UVC_ENTITY_IS_TERM(term) ||
-		    UVC_TERM_DIRECTION(term) != dir)
-			continue;
-
-		if (nterms)
-			p += sprintf(p, ",");
-		if (++nterms >= 4) {
-			p += sprintf(p, "...");
-			break;
-		}
-		p += sprintf(p, "%u", term->id);
-	}
-
-	return p - buffer;
-}
-
-static const char *uvc_print_chain(struct uvc_video_chain *chain)
-{
-	static char buffer[43];
-	char *p = buffer;
-
-	p += uvc_print_terms(&chain->entities, UVC_TERM_INPUT, p);
-	p += sprintf(p, " -> ");
-	uvc_print_terms(&chain->entities, UVC_TERM_OUTPUT, p);
-
-	return buffer;
-}
-
-/*
- * Scan the device for video chains and register video devices.
- *
- * Chains are scanned starting at their output terminals and walked backwards.
- */
-static int uvc_scan_device(struct uvc_device *dev)
-{
-	struct uvc_video_chain *chain;
-	struct uvc_entity *term;
-
-	list_for_each_entry(term, &dev->entities, list) {
-		if (!UVC_ENTITY_IS_OTERM(term))
-			continue;
-
-		/* If the terminal is already included in a chain, skip it.
-		 * This can happen for chains that have multiple output
-		 * terminals, where all output terminals beside the first one
-		 * will be inserted in the chain in forward scans.
-		 */
-		if (term->chain.next || term->chain.prev)
-			continue;
-
-		chain = kzalloc(sizeof(*chain), GFP_KERNEL);
-		if (chain == NULL)
-			return -ENOMEM;
-
-		INIT_LIST_HEAD(&chain->entities);
-		mutex_init(&chain->ctrl_mutex);
-		chain->dev = dev;
-
-		if (uvc_scan_chain(chain, term) < 0) {
-			kfree(chain);
-			continue;
-		}
-
-		uvc_trace(UVC_TRACE_PROBE, "Found a valid video chain (%s).\n",
-			  uvc_print_chain(chain));
-
-		list_add_tail(&chain->list, &dev->chains);
-	}
-
-	if (list_empty(&dev->chains)) {
-		uvc_printk(KERN_INFO, "No valid video chain found.\n");
-		return -1;
-	}
-
-	return 0;
-}
-
-/* ------------------------------------------------------------------------
- * Video device registration and unregistration
- */
-
-/*
- * Delete the UVC device.
- *
- * Called by the kernel when the last reference to the uvc_device structure
- * is released.
- *
- * As this function is called after or during disconnect(), all URBs have
- * already been canceled by the USB core. There is no need to kill the
- * interrupt URB manually.
- */
-static void uvc_delete(struct uvc_device *dev)
-{
-	struct list_head *p, *n;
-
-	usb_put_intf(dev->intf);
-	usb_put_dev(dev->udev);
-
-	uvc_status_cleanup(dev);
-	uvc_ctrl_cleanup_device(dev);
-
-	if (dev->vdev.dev)
-		v4l2_device_unregister(&dev->vdev);
-#ifdef CONFIG_MEDIA_CONTROLLER
-	if (media_devnode_is_registered(&dev->mdev.devnode))
-		media_device_unregister(&dev->mdev);
-#endif
-
-	list_for_each_safe(p, n, &dev->chains) {
-		struct uvc_video_chain *chain;
-		chain = list_entry(p, struct uvc_video_chain, list);
-		kfree(chain);
-	}
-
-	list_for_each_safe(p, n, &dev->entities) {
-		struct uvc_entity *entity;
-		entity = list_entry(p, struct uvc_entity, list);
-#ifdef CONFIG_MEDIA_CONTROLLER
-		uvc_mc_cleanup_entity(entity);
-#endif
-		if (entity->vdev) {
-			video_device_release(entity->vdev);
-			entity->vdev = NULL;
-		}
-		kfree(entity);
-	}
-
-	list_for_each_safe(p, n, &dev->streams) {
-		struct uvc_streaming *streaming;
-		streaming = list_entry(p, struct uvc_streaming, list);
-		usb_driver_release_interface(&uvc_driver.driver,
-			streaming->intf);
-		usb_put_intf(streaming->intf);
-		kfree(streaming->format);
-		kfree(streaming->header.bmaControls);
-		kfree(streaming);
-	}
-
-	kfree(dev);
-}
-
-static void uvc_release(struct video_device *vdev)
-{
-	struct uvc_streaming *stream = video_get_drvdata(vdev);
-	struct uvc_device *dev = stream->dev;
-
-	/* Decrement the registered streams count and delete the device when it
-	 * reaches zero.
-	 */
-	if (atomic_dec_and_test(&dev->nstreams))
-		uvc_delete(dev);
-}
-
-/*
- * Unregister the video devices.
- */
-static void uvc_unregister_video(struct uvc_device *dev)
-{
-	struct uvc_streaming *stream;
-
-	/* Unregistering all video devices might result in uvc_delete() being
-	 * called from inside the loop if there's no open file handle. To avoid
-	 * that, increment the stream count before iterating over the streams
-	 * and decrement it when done.
-	 */
-	atomic_inc(&dev->nstreams);
-
-	list_for_each_entry(stream, &dev->streams, list) {
-		if (stream->vdev == NULL)
-			continue;
-
-		video_unregister_device(stream->vdev);
-		stream->vdev = NULL;
-
-		uvc_debugfs_cleanup_stream(stream);
-	}
-
-	/* Decrement the stream count and call uvc_delete explicitly if there
-	 * are no stream left.
-	 */
-	if (atomic_dec_and_test(&dev->nstreams))
-		uvc_delete(dev);
-}
-
-static int uvc_register_video(struct uvc_device *dev,
-		struct uvc_streaming *stream)
-{
-	struct video_device *vdev;
-	int ret;
-
-	/* Initialize the streaming interface with default streaming
-	 * parameters.
-	 */
-	ret = uvc_video_init(stream);
-	if (ret < 0) {
-		uvc_printk(KERN_ERR, "Failed to initialize the device "
-			"(%d).\n", ret);
-		return ret;
-	}
-
-	uvc_debugfs_init_stream(stream);
-
-	/* Register the device with V4L. */
-	vdev = video_device_alloc();
-	if (vdev == NULL) {
-		uvc_printk(KERN_ERR, "Failed to allocate video device (%d).\n",
-			   ret);
-		return -ENOMEM;
-	}
-
-	/* We already hold a reference to dev->udev. The video device will be
-	 * unregistered before the reference is released, so we don't need to
-	 * get another one.
-	 */
-	vdev->v4l2_dev = &dev->vdev;
-	vdev->fops = &uvc_fops;
-	vdev->release = uvc_release;
-	strlcpy(vdev->name, dev->name, sizeof vdev->name);
-
-	/* Set the driver data before calling video_register_device, otherwise
-	 * uvc_v4l2_open might race us.
-	 */
-	stream->vdev = vdev;
-	video_set_drvdata(vdev, stream);
-
-	ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1);
-	if (ret < 0) {
-		uvc_printk(KERN_ERR, "Failed to register video device (%d).\n",
-			   ret);
-		stream->vdev = NULL;
-		video_device_release(vdev);
-		return ret;
-	}
-
-	atomic_inc(&dev->nstreams);
-	return 0;
-}
-
-/*
- * Register all video devices in all chains.
- */
-static int uvc_register_terms(struct uvc_device *dev,
-	struct uvc_video_chain *chain)
-{
-	struct uvc_streaming *stream;
-	struct uvc_entity *term;
-	int ret;
-
-	list_for_each_entry(term, &chain->entities, chain) {
-		if (UVC_ENTITY_TYPE(term) != UVC_TT_STREAMING)
-			continue;
-
-		stream = uvc_stream_by_id(dev, term->id);
-		if (stream == NULL) {
-			uvc_printk(KERN_INFO, "No streaming interface found "
-				   "for terminal %u.", term->id);
-			continue;
-		}
-
-		stream->chain = chain;
-		ret = uvc_register_video(dev, stream);
-		if (ret < 0)
-			return ret;
-
-		term->vdev = stream->vdev;
-	}
-
-	return 0;
-}
-
-static int uvc_register_chains(struct uvc_device *dev)
-{
-	struct uvc_video_chain *chain;
-	int ret;
-
-	list_for_each_entry(chain, &dev->chains, list) {
-		ret = uvc_register_terms(dev, chain);
-		if (ret < 0)
-			return ret;
-
-#ifdef CONFIG_MEDIA_CONTROLLER
-		ret = uvc_mc_register_entities(chain);
-		if (ret < 0) {
-			uvc_printk(KERN_INFO, "Failed to register entites "
-				"(%d).\n", ret);
-		}
-#endif
-	}
-
-	return 0;
-}
-
-/* ------------------------------------------------------------------------
- * USB probe, disconnect, suspend and resume
- */
-
-static int uvc_probe(struct usb_interface *intf,
-		     const struct usb_device_id *id)
-{
-	struct usb_device *udev = interface_to_usbdev(intf);
-	struct uvc_device *dev;
-	int ret;
-
-	if (id->idVendor && id->idProduct)
-		uvc_trace(UVC_TRACE_PROBE, "Probing known UVC device %s "
-				"(%04x:%04x)\n", udev->devpath, id->idVendor,
-				id->idProduct);
-	else
-		uvc_trace(UVC_TRACE_PROBE, "Probing generic UVC device %s\n",
-				udev->devpath);
-
-	/* Allocate memory for the device and initialize it. */
-	if ((dev = kzalloc(sizeof *dev, GFP_KERNEL)) == NULL)
-		return -ENOMEM;
-
-	INIT_LIST_HEAD(&dev->entities);
-	INIT_LIST_HEAD(&dev->chains);
-	INIT_LIST_HEAD(&dev->streams);
-	atomic_set(&dev->nstreams, 0);
-	atomic_set(&dev->users, 0);
-	atomic_set(&dev->nmappings, 0);
-
-	dev->udev = usb_get_dev(udev);
-	dev->intf = usb_get_intf(intf);
-	dev->intfnum = intf->cur_altsetting->desc.bInterfaceNumber;
-	dev->quirks = (uvc_quirks_param == -1)
-		    ? id->driver_info : uvc_quirks_param;
-
-	if (udev->product != NULL)
-		strlcpy(dev->name, udev->product, sizeof dev->name);
-	else
-		snprintf(dev->name, sizeof dev->name,
-			"UVC Camera (%04x:%04x)",
-			le16_to_cpu(udev->descriptor.idVendor),
-			le16_to_cpu(udev->descriptor.idProduct));
-
-	/* Parse the Video Class control descriptor. */
-	if (uvc_parse_control(dev) < 0) {
-		uvc_trace(UVC_TRACE_PROBE, "Unable to parse UVC "
-			"descriptors.\n");
-		goto error;
-	}
-
-	uvc_printk(KERN_INFO, "Found UVC %u.%02x device %s (%04x:%04x)\n",
-		dev->uvc_version >> 8, dev->uvc_version & 0xff,
-		udev->product ? udev->product : "<unnamed>",
-		le16_to_cpu(udev->descriptor.idVendor),
-		le16_to_cpu(udev->descriptor.idProduct));
-
-	if (dev->quirks != id->driver_info) {
-		uvc_printk(KERN_INFO, "Forcing device quirks to 0x%x by module "
-			"parameter for testing purpose.\n", dev->quirks);
-		uvc_printk(KERN_INFO, "Please report required quirks to the "
-			"linux-uvc-devel mailing list.\n");
-	}
-
-	/* Register the media and V4L2 devices. */
-#ifdef CONFIG_MEDIA_CONTROLLER
-	dev->mdev.dev = &intf->dev;
-	strlcpy(dev->mdev.model, dev->name, sizeof(dev->mdev.model));
-	if (udev->serial)
-		strlcpy(dev->mdev.serial, udev->serial,
-			sizeof(dev->mdev.serial));
-	strcpy(dev->mdev.bus_info, udev->devpath);
-	dev->mdev.hw_revision = le16_to_cpu(udev->descriptor.bcdDevice);
-	dev->mdev.driver_version = LINUX_VERSION_CODE;
-	if (media_device_register(&dev->mdev) < 0)
-		goto error;
-
-	dev->vdev.mdev = &dev->mdev;
-#endif
-	if (v4l2_device_register(&intf->dev, &dev->vdev) < 0)
-		goto error;
-
-	/* Initialize controls. */
-	if (uvc_ctrl_init_device(dev) < 0)
-		goto error;
-
-	/* Scan the device for video chains. */
-	if (uvc_scan_device(dev) < 0)
-		goto error;
-
-	/* Register video device nodes. */
-	if (uvc_register_chains(dev) < 0)
-		goto error;
-
-	/* Save our data pointer in the interface data. */
-	usb_set_intfdata(intf, dev);
-
-	/* Initialize the interrupt URB. */
-	if ((ret = uvc_status_init(dev)) < 0) {
-		uvc_printk(KERN_INFO, "Unable to initialize the status "
-			"endpoint (%d), status interrupt will not be "
-			"supported.\n", ret);
-	}
-
-	uvc_trace(UVC_TRACE_PROBE, "UVC device initialized.\n");
-	usb_enable_autosuspend(udev);
-	return 0;
-
-error:
-	uvc_unregister_video(dev);
-	return -ENODEV;
-}
-
-static void uvc_disconnect(struct usb_interface *intf)
-{
-	struct uvc_device *dev = usb_get_intfdata(intf);
-
-	/* Set the USB interface data to NULL. This can be done outside the
-	 * lock, as there's no other reader.
-	 */
-	usb_set_intfdata(intf, NULL);
-
-	if (intf->cur_altsetting->desc.bInterfaceSubClass ==
-	    UVC_SC_VIDEOSTREAMING)
-		return;
-
-	dev->state |= UVC_DEV_DISCONNECTED;
-
-	uvc_unregister_video(dev);
-}
-
-static int uvc_suspend(struct usb_interface *intf, pm_message_t message)
-{
-	struct uvc_device *dev = usb_get_intfdata(intf);
-	struct uvc_streaming *stream;
-
-	uvc_trace(UVC_TRACE_SUSPEND, "Suspending interface %u\n",
-		intf->cur_altsetting->desc.bInterfaceNumber);
-
-	/* Controls are cached on the fly so they don't need to be saved. */
-	if (intf->cur_altsetting->desc.bInterfaceSubClass ==
-	    UVC_SC_VIDEOCONTROL)
-		return uvc_status_suspend(dev);
-
-	list_for_each_entry(stream, &dev->streams, list) {
-		if (stream->intf == intf)
-			return uvc_video_suspend(stream);
-	}
-
-	uvc_trace(UVC_TRACE_SUSPEND, "Suspend: video streaming USB interface "
-			"mismatch.\n");
-	return -EINVAL;
-}
-
-static int __uvc_resume(struct usb_interface *intf, int reset)
-{
-	struct uvc_device *dev = usb_get_intfdata(intf);
-	struct uvc_streaming *stream;
-
-	uvc_trace(UVC_TRACE_SUSPEND, "Resuming interface %u\n",
-		intf->cur_altsetting->desc.bInterfaceNumber);
-
-	if (intf->cur_altsetting->desc.bInterfaceSubClass ==
-	    UVC_SC_VIDEOCONTROL) {
-		if (reset) {
-			int ret = uvc_ctrl_resume_device(dev);
-
-			if (ret < 0)
-				return ret;
-		}
-
-		return uvc_status_resume(dev);
-	}
-
-	list_for_each_entry(stream, &dev->streams, list) {
-		if (stream->intf == intf)
-			return uvc_video_resume(stream, reset);
-	}
-
-	uvc_trace(UVC_TRACE_SUSPEND, "Resume: video streaming USB interface "
-			"mismatch.\n");
-	return -EINVAL;
-}
-
-static int uvc_resume(struct usb_interface *intf)
-{
-	return __uvc_resume(intf, 0);
-}
-
-static int uvc_reset_resume(struct usb_interface *intf)
-{
-	return __uvc_resume(intf, 1);
-}
-
-/* ------------------------------------------------------------------------
- * Module parameters
- */
-
-static int uvc_clock_param_get(char *buffer, struct kernel_param *kp)
-{
-	if (uvc_clock_param == CLOCK_MONOTONIC)
-		return sprintf(buffer, "CLOCK_MONOTONIC");
-	else
-		return sprintf(buffer, "CLOCK_REALTIME");
-}
-
-static int uvc_clock_param_set(const char *val, struct kernel_param *kp)
-{
-	if (strncasecmp(val, "clock_", strlen("clock_")) == 0)
-		val += strlen("clock_");
-
-	if (strcasecmp(val, "monotonic") == 0)
-		uvc_clock_param = CLOCK_MONOTONIC;
-	else if (strcasecmp(val, "realtime") == 0)
-		uvc_clock_param = CLOCK_REALTIME;
-	else
-		return -EINVAL;
-
-	return 0;
-}
-
-module_param_call(clock, uvc_clock_param_set, uvc_clock_param_get,
-		  &uvc_clock_param, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(clock, "Video buffers timestamp clock");
-module_param_named(nodrop, uvc_no_drop_param, uint, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(nodrop, "Don't drop incomplete frames");
-module_param_named(quirks, uvc_quirks_param, uint, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(quirks, "Forced device quirks");
-module_param_named(trace, uvc_trace_param, uint, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(trace, "Trace level bitmask");
-module_param_named(timeout, uvc_timeout_param, uint, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(timeout, "Streaming control requests timeout");
-
-/* ------------------------------------------------------------------------
- * Driver initialization and cleanup
- */
-
-/*
- * The Logitech cameras listed below have their interface class set to
- * VENDOR_SPEC because they don't announce themselves as UVC devices, even
- * though they are compliant.
- */
-static struct usb_device_id uvc_ids[] = {
-	/* LogiLink Wireless Webcam */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x0416,
-	  .idProduct		= 0xa91a,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
-	/* Genius eFace 2025 */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x0458,
-	  .idProduct		= 0x706e,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
-	/* Microsoft Lifecam NX-6000 */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x045e,
-	  .idProduct		= 0x00f8,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
-	/* Microsoft Lifecam VX-7000 */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x045e,
-	  .idProduct		= 0x0723,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
-	/* Logitech Quickcam Fusion */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x046d,
-	  .idProduct		= 0x08c1,
-	  .bInterfaceClass	= USB_CLASS_VENDOR_SPEC,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0 },
-	/* Logitech Quickcam Orbit MP */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x046d,
-	  .idProduct		= 0x08c2,
-	  .bInterfaceClass	= USB_CLASS_VENDOR_SPEC,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0 },
-	/* Logitech Quickcam Pro for Notebook */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x046d,
-	  .idProduct		= 0x08c3,
-	  .bInterfaceClass	= USB_CLASS_VENDOR_SPEC,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0 },
-	/* Logitech Quickcam Pro 5000 */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x046d,
-	  .idProduct		= 0x08c5,
-	  .bInterfaceClass	= USB_CLASS_VENDOR_SPEC,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0 },
-	/* Logitech Quickcam OEM Dell Notebook */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x046d,
-	  .idProduct		= 0x08c6,
-	  .bInterfaceClass	= USB_CLASS_VENDOR_SPEC,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0 },
-	/* Logitech Quickcam OEM Cisco VT Camera II */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x046d,
-	  .idProduct		= 0x08c7,
-	  .bInterfaceClass	= USB_CLASS_VENDOR_SPEC,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0 },
-	/* Chicony CNF7129 (Asus EEE 100HE) */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x04f2,
-	  .idProduct		= 0xb071,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_RESTRICT_FRAME_RATE },
-	/* Alcor Micro AU3820 (Future Boy PC USB Webcam) */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x058f,
-	  .idProduct		= 0x3820,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
-	/* Dell XPS m1530 */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x05a9,
-	  .idProduct		= 0x2640,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info 		= UVC_QUIRK_PROBE_DEF },
-	/* Apple Built-In iSight */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x05ac,
-	  .idProduct		= 0x8501,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info 		= UVC_QUIRK_PROBE_MINMAX
-				| UVC_QUIRK_BUILTIN_ISIGHT },
-	/* Foxlink ("HP Webcam" on HP Mini 5103) */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x05c8,
-	  .idProduct		= 0x0403,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_FIX_BANDWIDTH },
-	/* Genesys Logic USB 2.0 PC Camera */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x05e3,
-	  .idProduct		= 0x0505,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_STREAM_NO_FID },
-	/* Hercules Classic Silver */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x06f8,
-	  .idProduct		= 0x300c,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_FIX_BANDWIDTH },
-	/* ViMicro Vega */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x0ac8,
-	  .idProduct		= 0x332d,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_FIX_BANDWIDTH },
-	/* ViMicro - Minoru3D */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x0ac8,
-	  .idProduct		= 0x3410,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_FIX_BANDWIDTH },
-	/* ViMicro Venus - Minoru3D */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x0ac8,
-	  .idProduct		= 0x3420,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_FIX_BANDWIDTH },
-	/* Ophir Optronics - SPCAM 620U */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x0bd3,
-	  .idProduct		= 0x0555,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
-	/* MT6227 */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x0e8d,
-	  .idProduct		= 0x0004,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_PROBE_MINMAX
-				| UVC_QUIRK_PROBE_DEF },
-	/* IMC Networks (Medion Akoya) */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x13d3,
-	  .idProduct		= 0x5103,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_STREAM_NO_FID },
-	/* JMicron USB2.0 XGA WebCam */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x152d,
-	  .idProduct		= 0x0310,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
-	/* Syntek (HP Spartan) */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x174f,
-	  .idProduct		= 0x5212,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_STREAM_NO_FID },
-	/* Syntek (Samsung Q310) */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x174f,
-	  .idProduct		= 0x5931,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_STREAM_NO_FID },
-	/* Syntek (Packard Bell EasyNote MX52 */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x174f,
-	  .idProduct		= 0x8a12,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_STREAM_NO_FID },
-	/* Syntek (Asus F9SG) */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x174f,
-	  .idProduct		= 0x8a31,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_STREAM_NO_FID },
-	/* Syntek (Asus U3S) */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x174f,
-	  .idProduct		= 0x8a33,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_STREAM_NO_FID },
-	/* Syntek (JAOtech Smart Terminal) */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x174f,
-	  .idProduct		= 0x8a34,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_STREAM_NO_FID },
-	/* Miricle 307K */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x17dc,
-	  .idProduct		= 0x0202,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_STREAM_NO_FID },
-	/* Lenovo Thinkpad SL400/SL500 */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x17ef,
-	  .idProduct		= 0x480b,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_STREAM_NO_FID },
-	/* Aveo Technology USB 2.0 Camera */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x1871,
-	  .idProduct		= 0x0306,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_PROBE_MINMAX
-				| UVC_QUIRK_PROBE_EXTRAFIELDS },
-	/* Ecamm Pico iMage */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x18cd,
-	  .idProduct		= 0xcafe,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_PROBE_EXTRAFIELDS },
-	/* Manta MM-353 Plako */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x18ec,
-	  .idProduct		= 0x3188,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
-	/* FSC WebCam V30S */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x18ec,
-	  .idProduct		= 0x3288,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
-	/* Arkmicro unbranded */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x18ec,
-	  .idProduct		= 0x3290,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_PROBE_DEF },
-	/* The Imaging Source USB CCD cameras */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x199e,
-	  .idProduct		= 0x8102,
-	  .bInterfaceClass	= USB_CLASS_VENDOR_SPEC,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0 },
-	/* Bodelin ProScopeHR */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_DEV_HI
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x19ab,
-	  .idProduct		= 0x1000,
-	  .bcdDevice_hi		= 0x0126,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_STATUS_INTERVAL },
-	/* MSI StarCam 370i */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x1b3b,
-	  .idProduct		= 0x2951,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
-	/* SiGma Micro USB Web Camera */
-	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
-				| USB_DEVICE_ID_MATCH_INT_INFO,
-	  .idVendor		= 0x1c4f,
-	  .idProduct		= 0x3000,
-	  .bInterfaceClass	= USB_CLASS_VIDEO,
-	  .bInterfaceSubClass	= 1,
-	  .bInterfaceProtocol	= 0,
-	  .driver_info		= UVC_QUIRK_PROBE_MINMAX
-				| UVC_QUIRK_IGNORE_SELECTOR_UNIT },
-	/* Generic USB Video Class */
-	{ USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, 0) },
-	{}
-};
-
-MODULE_DEVICE_TABLE(usb, uvc_ids);
-
-struct uvc_driver uvc_driver = {
-	.driver = {
-		.name		= "uvcvideo",
-		.probe		= uvc_probe,
-		.disconnect	= uvc_disconnect,
-		.suspend	= uvc_suspend,
-		.resume		= uvc_resume,
-		.reset_resume	= uvc_reset_resume,
-		.id_table	= uvc_ids,
-		.supports_autosuspend = 1,
-	},
-};
-
-static int __init uvc_init(void)
-{
-	int ret;
-
-	uvc_debugfs_init();
-
-	ret = usb_register(&uvc_driver.driver);
-	if (ret < 0) {
-		uvc_debugfs_cleanup();
-		return ret;
-	}
-
-	printk(KERN_INFO DRIVER_DESC " (" DRIVER_VERSION ")\n");
-	return 0;
-}
-
-static void __exit uvc_cleanup(void)
-{
-	usb_deregister(&uvc_driver.driver);
-	uvc_debugfs_cleanup();
-}
-
-module_init(uvc_init);
-module_exit(uvc_cleanup);
-
-MODULE_AUTHOR(DRIVER_AUTHOR);
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
-MODULE_VERSION(DRIVER_VERSION);
-