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V4L/DVB (10102): uvcvideo: Ignore interrupt endpoint for built-in iSight webcams.

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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.

Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Laurent Pinchart 2008-12-28 20:26:32 -03:00 committed by Mauro Carvalho Chehab
parent f8dd4af6d4
commit 538e7a004b
1 changed files with 7 additions and 2 deletions
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9
drivers/media/video/uvc/uvc_driver.c
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@ -1147,8 +1147,13 @@ static int uvc_parse_control(struct uvc_device *dev)
buffer += buffer[0]; buffer += buffer[0];
} }
/* Check if the optional status endpoint is present. */ /* Check if the optional status endpoint is present. Built-in iSight
if (alts->desc.bNumEndpoints == 1) { * 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_host_endpoint *ep = &alts->endpoint[0];
struct usb_endpoint_descriptor *desc = &ep->desc; struct usb_endpoint_descriptor *desc = &ep->desc;