2017-11-04 07:13:28

by Laurent Pinchart

[permalink] [raw]
Subject: Re: [PATCH] uvc: Add D3DFMT_L8 support

Hi Nicolas,

Thank you for the patch.

On Friday, 3 November 2017 19:57:46 EET Nicolas Dufresne wrote:
> Microsoft HoloLense UVC sensor uses D3DFMT instead of FOURCC when
> exposing formats. This add support for D3DFMT_L8 as exposed from

s/add/adds/

> the Acer Windows Mixed Reality Headset.
>
> Signed-off-by: Nicolas Dufresne <[email protected]>
> ---
> drivers/media/usb/uvc/uvc_driver.c | 5 +++++
> drivers/media/usb/uvc/uvcvideo.h | 5 +++++
> 2 files changed, 10 insertions(+)
>
> diff --git a/drivers/media/usb/uvc/uvc_driver.c
> b/drivers/media/usb/uvc/uvc_driver.c index 6d22b22cb35b..56f70851f88b
> 100644
> --- a/drivers/media/usb/uvc/uvc_driver.c
> +++ b/drivers/media/usb/uvc/uvc_driver.c
> @@ -203,6 +203,11 @@ static struct uvc_format_desc uvc_fmts[] = {
> .guid = UVC_GUID_FORMAT_INZI,
> .fcc = V4L2_PIX_FMT_INZI,
> },
> + {
> + .name = "Greyscale 8-bit (D3DFMT_L8)",
> + .guid = UVC_GUID_FORMAT_D3DFMT_L8,
> + .fcc = V4L2_PIX_FMT_GREY,
> + },

How about moving this entry just after the two existing GREY entries ?

Apart from this,

Reviewed-by: Laurent Pinchart <[email protected]>

If you're fine with those two minor changes there's no need to resubmit, I'll
fold the changes in when applying the patch.

> };
>
> /* ------------------------------------------------------------------------
> diff --git a/drivers/media/usb/uvc/uvcvideo.h
> b/drivers/media/usb/uvc/uvcvideo.h index 34c7ee6cc9e5..fbc1f433ff05 100644
> --- a/drivers/media/usb/uvc/uvcvideo.h
> +++ b/drivers/media/usb/uvc/uvcvideo.h
> @@ -153,6 +153,11 @@
> { 'I', 'N', 'V', 'I', 0xdb, 0x57, 0x49, 0x5e, \
> 0x8e, 0x3f, 0xf4, 0x79, 0x53, 0x2b, 0x94, 0x6f}
>
> +#define UVC_GUID_FORMAT_D3DFMT_L8 \
> + {0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, \
> + 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
> +
> +
> /* ------------------------------------------------------------------------
> * Driver specific constants.
> */

--
Regards,

Laurent Pinchart


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