[PATCH] media: uvcvideo: Force UVC version to 1.0a for 1bcf:0b40

[Laurent Pinchart <laurent.pinchart@ideasonboard.com>]

The Shenzhen Aoni Electronic Co.,Ltd 2K FHD camera reports a UVC 1.10
version, but implements UVC 1.0a as shown by the UVC probe control being
26 bytes long. Force the UVC version for that device.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reported-by: Doncho Minkov <donchominkov@gmail.com>
Tested-by: Doncho Minkov <donchominkov@gmail.com>
---
 drivers/media/usb/uvc/uvc_driver.c | 17 +++++++++++++++++
 drivers/media/usb/uvc/uvcvideo.h   |  1 +
 2 files changed, 18 insertions(+)

diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index ddb9eaa11be7..ae970f19bfca 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -2274,6 +2274,12 @@ static int uvc_probe(struct usb_interface *intf,
 			"linux-uvc-devel mailing list.\n");
 	}
 
+	if (dev->info->uvc_version) {
+		dev->uvc_version = dev->info->uvc_version;
+		uvc_printk(KERN_INFO, "Forcing UVC version to %u.%02x\n",
+			   dev->uvc_version >> 8, dev->uvc_version & 0xff);
+	}
+
 	/* Register the V4L2 device. */
 	if (v4l2_device_register(&intf->dev, &dev->vdev) < 0)
 		goto error;
@@ -2923,6 +2929,17 @@ static const struct usb_device_id uvc_ids[] = {
 	  .bInterfaceSubClass	= 1,
 	  .bInterfaceProtocol	= 0,
 	  .driver_info		= (kernel_ulong_t)&uvc_quirk_probe_minmax },
+	/* Shenzhen Aoni Electronic Co.,Ltd 2K FHD camera */
+	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
+				| USB_DEVICE_ID_MATCH_INT_INFO,
+	  .idVendor		= 0x1bcf,
+	  .idProduct		= 0x0b40,
+	  .bInterfaceClass	= USB_CLASS_VIDEO,
+	  .bInterfaceSubClass	= 1,
+	  .bInterfaceProtocol	= 0,
+	  .driver_info		= (kernel_ulong_t)&(const struct uvc_device_info){
+		.uvc_version = 0x010a,
+	  } },
 	/* SiGma Micro USB Web Camera */
 	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
 				| USB_DEVICE_ID_MATCH_INT_INFO,
diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h
index a3dfacf069c4..8ec9eca07f06 100644
--- a/drivers/media/usb/uvc/uvcvideo.h
+++ b/drivers/media/usb/uvc/uvcvideo.h
@@ -635,6 +635,7 @@ static inline u32 uvc_urb_index(const struct uvc_urb *uvc_urb)
 struct uvc_device_info {
 	u32	quirks;
 	u32	meta_format;
+	u16	uvc_version;
 };
 
 struct uvc_device {
-- 
Regards,

Laurent Pinchart