On Fri Dec 26 06:57:18 2025 +0000, Oliver Collyer wrote:
> 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 5374d8fb75f3
> ("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 <[email protected]>
> Reviewed-by: Laurent Pinchart <[email protected]>
> Link: https://patch.msgid.link/[email protected]
> Signed-off-by: Laurent Pinchart <[email protected]>
> Signed-off-by: Hans Verkuil <[email protected]>
Patch committed.
Thanks,
Hans Verkuil
drivers/media/common/uvc.c | 4 ++++
drivers/media/usb/uvc/uvc_v4l2.c | 3 +++
include/linux/usb/uvc.h | 3 +++
3 files changed, 10 insertions(+)
---
diff --git a/drivers/media/common/uvc.c b/drivers/media/common/uvc.c
index 1ad4604474ac..0107cedd031e 100644
--- a/drivers/media/common/uvc.c
+++ b/drivers/media/common/uvc.c
@@ -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,
diff --git a/drivers/media/usb/uvc/uvc_v4l2.c b/drivers/media/usb/uvc/uvc_v4l2.c
index d5860661c115..cda1697204ea 100644
--- a/drivers/media/usb/uvc/uvc_v4l2.c
+++ b/drivers/media/usb/uvc/uvc_v4l2.c
@@ -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;
}
diff --git a/include/linux/usb/uvc.h b/include/linux/usb/uvc.h
index ea92ac623a45..05bfebab42b6 100644
--- a/include/linux/usb/uvc.h
+++ b/include/linux/usb/uvc.h
@@ -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, \
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