Make a explicit reference to uvc 1.5, explaining how the algorithm supports the different behaviour of uvc 1.1 and 1.5. Tested-by: HungNien Chen <hn.chen@xxxxxxxxxxxxx> Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx> --- drivers/media/usb/uvc/uvc_video.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c index 170a008f4006..ab56e65ca324 100644 --- a/drivers/media/usb/uvc/uvc_video.c +++ b/drivers/media/usb/uvc/uvc_video.c @@ -517,6 +517,9 @@ uvc_video_clock_decode(struct uvc_streaming *stream, struct uvc_buffer *buf, /* * To limit the amount of data, drop SCRs with an SOF identical to the * previous one. + * This filtering is also needed for supporting UVC 1.5. Where all the + * data packages of the same frame contains the same sof. In that case + * only the first one will match the host_sof. */ dev_sof = get_unaligned_le16(&data[header_size - 2]); if (dev_sof == stream->clock.last_sof) -- 2.39.0.rc0.267.gcb52ba06e7-goog-b4-0.11.0-dev-696ae
