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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2009-10-09 20:55:23 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-12-05 18:40:37 -0200
commitb232a012adfea9f535702e8296ea6b76e691f436 (patch)
treeda121594b0c5e6d95d399190266e8b2582b2f22a /drivers/media/video/uvc/uvc_video.c
parentc4ed8c66d79d707d89fe732ff5b97739edf1ba62 (diff)
V4L/DVB (13155): uvcvideo: Add a module parameter to set the streaming control timeout
The default streaming control timeout was found by Ondrej Zary to be too low for some Logitech webcams. With kernel 2.6.22 and newer they would timeout during initialization unles the audio function was initialized before the video function. Add a module parameter to set the streaming control timeout and increase the default value from 1000ms to 3000ms to fix the above problem. Thanks to Ondrej Zary for investigating the issue and providing an initial patch. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/uvc/uvc_video.c')
-rw-r--r--drivers/media/video/uvc/uvc_video.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/media/video/uvc/uvc_video.c b/drivers/media/video/uvc/uvc_video.c
index 3369200a91d..05139a4f14f 100644
--- a/drivers/media/video/uvc/uvc_video.c
+++ b/drivers/media/video/uvc/uvc_video.c
@@ -135,7 +135,7 @@ static int uvc_get_video_ctrl(struct uvc_streaming *stream,
ret = __uvc_query_ctrl(stream->dev, query, 0, stream->intfnum,
probe ? UVC_VS_PROBE_CONTROL : UVC_VS_COMMIT_CONTROL, data,
- size, UVC_CTRL_STREAMING_TIMEOUT);
+ size, uvc_timeout_param);
if ((query == UVC_GET_MIN || query == UVC_GET_MAX) && ret == 2) {
/* Some cameras, mostly based on Bison Electronics chipsets,
@@ -239,7 +239,7 @@ static int uvc_set_video_ctrl(struct uvc_streaming *stream,
ret = __uvc_query_ctrl(stream->dev, UVC_SET_CUR, 0, stream->intfnum,
probe ? UVC_VS_PROBE_CONTROL : UVC_VS_COMMIT_CONTROL, data,
- size, UVC_CTRL_STREAMING_TIMEOUT);
+ size, uvc_timeout_param);
if (ret != size) {
uvc_printk(KERN_ERR, "Failed to set UVC %s control : "
"%d (exp. %u).\n", probe ? "probe" : "commit",