On Sun, Sep 30, 2018 at 01:38:16PM +0300, Laurent Pinchart wrote:
> From: ming_qian <ming_qian@xxxxxxxxxxxxxx>
>
> commit f620d1d7afc7db57ab59f35000752840c91f67e7 upstream.
>
> The length of UVC 1.5 video control is 48, and it is 34 for UVC 1.1.
> Change it to 48 for UVC 1.5 device, and the UVC 1.5 device can be
> recognized.
>
> More changes to the driver are needed for full UVC 1.5 compatibility.
> However, at least the UVC 1.5 Realtek RTS5847/RTS5852 cameras have been
> reported to work well.
>
> [laurent.pinchart@xxxxxxxxxxxxxxxx: Factor out code to helper function, update size checks]
>
> Signed-off-by: ming_qian <ming_qian@xxxxxxxxxxxxxx>
> Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Tested-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
> Tested-by: Ana Guerrero Lopez <ana.guerrero@xxxxxxxxxxxxx>
> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx>
> ---
> drivers/media/usb/uvc/uvc_video.c | 24 ++++++++++++++++++------
> 1 file changed, 18 insertions(+), 6 deletions(-)
>
> Hello,
>
> This patch was originally marked as a stable candidate, but a driver-wide
> switch from __u{8,16,32} to u{8,16,32} created conflicts that prevented
> backporting. This version fixes the conflicts and is otherwise not modified.
>
> The decision to mark the patch as a stable candidate came after reports from
> distro users that their UVC 1.5 camera was otherwise unusable. A guide has
> even been published to tell Debian users how to patch their kernel to fix the
> problem. Including the fix in stable will make their life much easier.
Now queued up, thanks.
greg k-h
