[libcamera-devel] [PATCH 2/7] libcamera: v4l2_device: Fix getFormatSingleplane ioclt

Kieran Bingham kieran.bingham at ideasonboard.com
Fri Feb 1 22:19:33 CET 2019


Hi Jacopo,

On 01/02/2019 16:42, Jacopo Mondi wrote:
> The single plane getFormat() function wrongly used the VIDIOC_S_FMT ioctl.
> Fix that by using the more opportune VIDIOC_G_FMT one.
I think this one deserves a fixes tag:

Fixes: ba8da0f2fcd0 ("libcamera: v4l2_device: Add methods to get/set
format")

With s/ioclt/ioctl/ in the commit title:

Reviewed-by: Kieran Bingham <kieran.bingham at ideasonboard.com.


> Signed-off-by: Jacopo Mondi <jacopo at jmondi.org>
> ---
>  src/libcamera/v4l2_device.cpp | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/src/libcamera/v4l2_device.cpp b/src/libcamera/v4l2_device.cpp
> index 26b6ff3..5ba89b9 100644
> --- a/src/libcamera/v4l2_device.cpp
> +++ b/src/libcamera/v4l2_device.cpp
> @@ -305,7 +305,7 @@ int V4L2Device::getFormatSingleplane(V4L2DeviceFormat *fmt)
>  	int ret;
>  
>  	v4l2Fmt.type = bufferType_;
> -	ret = ioctl(fd_, VIDIOC_S_FMT, &v4l2Fmt);
> +	ret = ioctl(fd_, VIDIOC_G_FMT, &v4l2Fmt);
>  	if (ret) {
>  		ret = -errno;
>  		LOG(Error) << "Unable to get format: " << strerror(-ret);
> 

-- 
Regards
--
Kieran


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