Re: [PATCH 1/8] usb: gadget: uvc: use fourcc printk helper

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Hi Michael,

Thank you for the patch.

On Thu, Mar 23, 2023 at 12:41:09PM +0100, Michael Tretter wrote:
> There is a format helper for printing fourcc codes. Use that one instead
> of manually formatting the pixelformat for printing.
> 
> Signed-off-by: Michael Tretter <m.tretter@xxxxxxxxxxxxxx>

Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>

> ---
>  drivers/usb/gadget/function/uvc_v4l2.c | 9 +++------
>  1 file changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/usb/gadget/function/uvc_v4l2.c b/drivers/usb/gadget/function/uvc_v4l2.c
> index 3f0a9795c0d4..13c7ba06f994 100644
> --- a/drivers/usb/gadget/function/uvc_v4l2.c
> +++ b/drivers/usb/gadget/function/uvc_v4l2.c
> @@ -240,16 +240,13 @@ uvc_v4l2_try_format(struct file *file, void *fh, struct v4l2_format *fmt)
>  	struct uvc_video *video = &uvc->video;
>  	struct uvcg_format *uformat;
>  	struct uvcg_frame *uframe;
> -	u8 *fcc;
>  
>  	if (fmt->type != video->queue.queue.type)
>  		return -EINVAL;
>  
> -	fcc = (u8 *)&fmt->fmt.pix.pixelformat;
> -	uvcg_dbg(&uvc->func, "Trying format 0x%08x (%c%c%c%c): %ux%u\n",
> -		fmt->fmt.pix.pixelformat,
> -		fcc[0], fcc[1], fcc[2], fcc[3],
> -		fmt->fmt.pix.width, fmt->fmt.pix.height);
> +	uvcg_dbg(&uvc->func, "Trying format %p4cc: %ux%u\n",
> +		 &fmt->fmt.pix.pixelformat,
> +		 fmt->fmt.pix.width, fmt->fmt.pix.height);
>  
>  	uformat = find_format_by_pix(uvc, fmt->fmt.pix.pixelformat);
>  	if (!uformat)

-- 
Regards,

Laurent Pinchart



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