Re: [PATCH 0/4] media: uvcvideo: Fixes for hw timestamping

[Yunke Cao]

Hi Ricardo,

I tested the series on a SunplusIT Inc 1080p FHD Camera (2b7e:c877).
Without this series, hardware timestamping was broken (due to the
issue fixed by [PATCH 2/4] of this series).
With this series, hardware timestamping works as intended.

Tested-by: Yunke Cao <yunkec@xxxxxxxxxx>

Best,
Yunke


On Mon, Mar 23, 2026 at 9:10 PM Ricardo Ribalda <ribalda@xxxxxxxxxxxx> wrote:
>
> This series introduces fixes for the hardware timestamp calculations.
>
> Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
> ---
> Ricardo Ribalda (4):
>       media: uvcvideo: Fix dev_sof filtering in hw timestamp
>       media: uvcvideo: Use hw timestaming if the clock buffer is full
>       media: uvcvideo: Relax the constrains for interpolating the hw clock
>       media: uvcvideo: Do not add clock samples with small sof delta
>
>  drivers/media/usb/uvc/uvc_video.c | 51 +++++++++++++++++++++++++++------------
>  1 file changed, 35 insertions(+), 16 deletions(-)
> ---
> base-commit: a7da7fb57f2a787412da1a62292a17fa00fbfbdf
> change-id: 20260309-uvc-hwtimestamp-f25dc27f5711
>
> Best regards,
> --
> Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
>