From: Laurent Pinchart Date: Mon, 9 Nov 2015 17:33:58 +0000 (-0200) Subject: [media] uvcvideo: Enable UVC 1.5 device detection X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8afe97be37fad85b1ad7d4ab5d6b06f6fc04a274;p=linux-beck.git [media] uvcvideo: Enable UVC 1.5 device detection UVC 1.5 devices report a bInterfaceProtocol value set to 1 in their interface descriptors. The uvcvideo driver only matches on bInterfaceProtocol 0, preventing those devices from being detected. More changes to the driver are needed for full UVC 1.5 compatibility. However, at least the UVC 1.5 Microsoft Surface Pro 3 cameras have been reported to work out of the box with the driver with an updated match table. Enable UVC 1.5 support in the match table to support the devices that can work with the current driver implementation. Devices that can't will fail, but that's hardly a regression as they're currently not detected at all anyway. Signed-off-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c index d11fd6ac2df0..39abbafad796 100644 --- a/drivers/media/usb/uvc/uvc_driver.c +++ b/drivers/media/usb/uvc/uvc_driver.c @@ -2540,7 +2540,8 @@ static struct usb_device_id uvc_ids[] = { .bInterfaceProtocol = 0, .driver_info = UVC_QUIRK_FORCE_Y8 }, /* Generic USB Video Class */ - { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, 0) }, + { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, UVC_PC_PROTOCOL_UNDEFINED) }, + { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, UVC_PC_PROTOCOL_15) }, {} }; diff --git a/include/uapi/linux/usb/video.h b/include/uapi/linux/usb/video.h index 3b3b95e01f71..69ab695fad2e 100644 --- a/include/uapi/linux/usb/video.h +++ b/include/uapi/linux/usb/video.h @@ -28,6 +28,7 @@ /* A.3. Video Interface Protocol Codes */ #define UVC_PC_PROTOCOL_UNDEFINED 0x00 +#define UVC_PC_PROTOCOL_15 0x01 /* A.5. Video Class-Specific VC Interface Descriptor Subtypes */ #define UVC_VC_DESCRIPTOR_UNDEFINED 0x00