Re: [PATCH] vb2: check if vb2_fop_write/read is allowed

2015-03-03 Thread Sakari Ailus
On Tue, Mar 03, 2015 at 12:23:59PM +0100, Hans Verkuil wrote: > Return -EINVAL if read() or write() is not supported by the queue. This > makes it possible to provide both vb2_fop_read and vb2_fop_write in a > struct v4l2_file_operations since the vb2_fop_* function will check if > the file operati

[PATCH] vb2: check if vb2_fop_write/read is allowed

2015-03-03 Thread Hans Verkuil
Return -EINVAL if read() or write() is not supported by the queue. This makes it possible to provide both vb2_fop_read and vb2_fop_write in a struct v4l2_file_operations since the vb2_fop_* function will check if the file operation is allowed. A similar check exists in __vb2_init_fileio() which is