From b5e5a37e36cd4d355b875665312d7aaae4e5833c Mon Sep 17 00:00:00 2001
From: Bastien Nocera <hadess@hadess.net>
Date: Fri, 16 Apr 2010 17:19:50 +0100
Subject: HID: add HID_QUIRK_HIDDEV_FORCE and HID_QUIRK_NO_IGNORE
Add two quirks to make it possible for usbhid module options to
override whether a device is ignored (HID_QUIRK_NO_IGNORE) and
whether to connect a hiddev device (HID_QUIRK_HIDDEV_FORCE).
Passing HID_QUIRK_NO_IGNORE for your device means that it will
not be ignored by the HID layer, even if present in a blacklist.
HID_QUIRK_HIDDEV_FORCE will force the creation of a hiddev for that
device, making it accessible from user-space.
Tested with an Apple IR Receiver, switching it from using appleir
to using lirc's macmini driver.
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
drivers/hid/hid-core.c | 4 +++-
drivers/hid/usbhid/hid-core.c | 1 +
include/linux/hid.h | 2 ++
3 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 8617aa97a9c..468c6c2d4ad 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1168,6 +1168,8 @@ int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
unsigned int i;
int len;
+ if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
+ connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
if (hdev->bus != BUS_USB)
connect_mask &= ~HID_CONNECT_HIDDEV;
if (hid_hiddev(hdev))
@@ -1757,7 +1759,7 @@ int hid_add_device(struct hid_device *hdev)
/* we need to kill them here, otherwise they will stay allocated to
* wait for coming driver */
- if (hid_ignore(hdev))
+ if (!(hdev->quirks & HID_QUIRK_NO_IGNORE) && hid_ignore(hdev))
return -ENODEV;
/* XXX hack, any other cleaner solution after the driver core
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 9cd61a52e9e..245aef0de8f 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -1143,6 +1143,7 @@ static int usbhid_probe(struct usb_interface *intf, const struct usb_device_id *
hid->vendor = le16_to_cpu(dev->descriptor.idVendor);
hid->product = le16_to_cpu(dev->descriptor.idProduct);
hid->name[0] = 0;
+ hid->quirks = usbhid_lookup_quirk(hid->vendor, hid->product);
if (intf->cur_altsetting->desc.bInterfaceProtocol ==
USB_INTERFACE_PROTOCOL_MOUSE)
hid->type = HID_TYPE_USBMOUSE;
diff --git a/include/linux/hid.h b/include/linux/hid.h
index b1344ec4b7f..f1f2b6f0d1c 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -308,11 +308,13 @@ struct hid_item {
#define HID_QUIRK_NOTOUCH 0x00000002
#define HID_QUIRK_IGNORE 0x00000004
#define HID_QUIRK_NOGET 0x00000008
+#define HID_QUIRK_HIDDEV_FORCE 0x00000010
#define HID_QUIRK_BADPAD 0x00000020
#define HID_QUIRK_MULTI_INPUT 0x00000040
#define HID_QUIRK_SKIP_OUTPUT_REPORTS 0x00010000
#define HID_QUIRK_FULLSPEED_INTERVAL 0x10000000
#define HID_QUIRK_NO_INIT_REPORTS 0x20000000
+#define HID_QUIRK_NO_IGNORE 0x40000000
/*
* This is the global environment of the parser. This information is
--
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