История изменений

Исправление hatred, 22.05.23 03:50 (текущая версия) :

konstitycii, погляди: https://www.kernel.org/doc/html/v6.3/userspace-api/media/v4l/vidioc-qbuf.html

EINVAL :: The buffer type is not supported, or the index is out of bounds, or no buffers have been allocated yet, or the userptr or length are invalid, or the V4L2_BUF_FLAG_REQUEST_FD flag was set but the given request_fd was invalid, or m.fd was an invalid DMABUF file descriptor.

Посмотри внимательно на все эти условия. Можешь залогировать.

Исходная версия hatred, 22.05.23 03:49:

konstitycii, погляди: https://www.kernel.org/doc/html/v6.3/userspace-api/media/v4l/vidioc-qbuf.html

EINVAL The buffer type is not supported, or the index is out of bounds, or no buffers have been allocated yet, or the userptr or length are invalid, or the V4L2_BUF_FLAG_REQUEST_FD flag was set but the given request_fd was invalid, or m.fd was an invalid DMABUF file descriptor.

Посмотри внимательно на все эти условия. Можешь залогировать.