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Commit 538e7a00 authored by Laurent Pinchart's avatar Laurent Pinchart Committed by Mauro Carvalho Chehab
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V4L/DVB (10102): uvcvideo: Ignore interrupt endpoint for built-in iSight webcams. 



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: default avatarLaurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent f8dd4af6

drivers/media/video/uvc/uvc_driver.c

+7 −2
Original line number Diff line number Diff line
@@ -1147,8 +1147,13 @@ next_descriptor: 
		buffer += buffer[0];

	}



	/* Check if the optional status endpoint is present. */

	if (alts->desc.bNumEndpoints == 1) {

	/* 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;