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Commit b7a597d1 authored by Jean-Francois Moine's avatar Jean-Francois Moine Committed by Mauro Carvalho Chehab
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V4L/DVB (13925): gspca - main: Change the check of the USB video interface. 



Some webcams have many interfaces with the same interface class, so the
previous interface check did not work.
The new code checks if the interface number is zero or the only one.

Signed-off-by: default avatarJean-Francois Moine <moinejf@free.fr>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 6f081264

drivers/media/video/gspca/gspca.c

+3 −6
Original line number Diff line number Diff line
@@ -2063,14 +2063,11 @@ int gspca_dev_probe(struct usb_interface *intf, 
		return -ENODEV;

	}



	/* check the interface class and ignore the sound interfaces */

	/* the USB video interface must be the first one */

	interface = &intf->cur_altsetting->desc;

	if (interface->bInterfaceClass != USB_CLASS_VENDOR_SPEC

	    && interface->bInterfaceClass != USB_CLASS_PER_INTERFACE) {

		PDEBUG(D_PROBE, "Interface class %d not handled here",

			interface->bInterfaceClass);

	if (dev->config->desc.bNumInterfaces != 1 &&

	    interface->bInterfaceNumber != 0)

		return -ENODEV;

	}



	/* create the device */

	if (dev_size < sizeof *gspca_dev)