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media: uvcvideo: Add support for P010 pixel format

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Add support for the P010 (10-bit Y/UV 4:2:0) pixel format to the
uvcvideo driver. This format is exposed by USB capture devices such as
the Magewell USB Capture HDMI 4K Pro when capturing HDR10 content.

P010 stores 10-bit Y and interleaved UV samples in 16-bit little-endian
words, with data in the upper 10 bits and zeros in the lower 6 bits.
This requires 2 bytes per sample, so bytesperline is wWidth * 2.

V4L2_PIX_FMT_P010 was added to the V4L2 core in commit 5374d8fb75
("media: Add P010 video format").

Based on the community DKMS patch from awawa-dev/P010_for_V4L2.

Link: https://github.com/awawa-dev/P010_for_V4L2
Signed-off-by: Oliver Collyer <ovcollyer@mac.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patch.msgid.link/20251226065718.95504-1-ovcollyer@mac.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Oliver Collyer
2025-12-26 06:57:18 +00:00
committed by Hans Verkuil
parent 45507b1009
commit 2c8fe1f142
3 changed files with 10 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/media/common/uvc.c
View File

@@ -40,6 +40,10 @@ static const struct uvc_format_desc uvc_fmts[] = {
.guid = UVC_GUID_FORMAT_M420,
.fcc = V4L2_PIX_FMT_M420,
},
{
.guid = UVC_GUID_FORMAT_P010,
.fcc = V4L2_PIX_FMT_P010,
},
{
.guid = UVC_GUID_FORMAT_UYVY,
.fcc = V4L2_PIX_FMT_UYVY,

3
drivers/media/usb/uvc/uvc_v4l2.c
View File

@@ -230,6 +230,9 @@ static u32 uvc_v4l2_get_bytesperline(const struct uvc_format *format,
case V4L2_PIX_FMT_M420:
return frame->wWidth;
case V4L2_PIX_FMT_P010:
return frame->wWidth * 2;
default:
return format->bpp * frame->wWidth / 8;
}

3
include/linux/usb/uvc.h
View File

@@ -138,6 +138,9 @@
#define UVC_GUID_FORMAT_M420 \
{ 'M', '4', '2', '0', 0x00, 0x00, 0x10, 0x00, \
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
#define UVC_GUID_FORMAT_P010 \
{ 'P', '0', '1', '0', 0x00, 0x00, 0x10, 0x00, \
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
#define UVC_GUID_FORMAT_H264 \
{ 'H', '2', '6', '4', 0x00, 0x00, 0x10, 0x00, \