From 52a9d3ef0034f29cef1c5616faa72aa394b01b65 Mon Sep 17 00:00:00 2001 From: Jean-Francois Moine Date: Tue, 5 Jan 2010 04:44:00 -0300 Subject: [PATCH] V4L/DVB (13897): gspca - main: Check the interface class at probe time. The USB video interface was checked as having the number zero, but some webcams have other values. The test is now done on the interface class which may be either 255 (vendor spec) or 0 (class per interface). Signed-off-by: Jean-Francois Moine Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/gspca.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c index 61be007e8fb3..351cf8a658fc 100644 --- a/drivers/media/video/gspca/gspca.c +++ b/drivers/media/video/gspca/gspca.c @@ -2062,9 +2062,13 @@ int gspca_dev_probe(struct usb_interface *intf, PDEBUG(D_ERR, "Too many config"); return -ENODEV; } + + /* check the interface class and ignore the sound interfaces */ interface = &intf->cur_altsetting->desc; - if (interface->bInterfaceNumber > 0) { - PDEBUG(D_ERR, "intf != 0"); + if (interface->bInterfaceClass != USB_CLASS_VENDOR_SPEC + && interface->bInterfaceClass != USB_CLASS_PER_INTERFACE) { + PDEBUG(D_PROBE, "Interface class %d not handled here", + interface->bInterfaceClass); return -ENODEV; } -- 2.20.1