Hi Laurent, Thanks for the set! On Mon, May 16, 2016 at 01:02:12PM +0300, Laurent Pinchart wrote: > Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> > --- > yavta.c | 24 ++++++++++++++++++++++++ > 1 file changed, 24 insertions(+) > > diff --git a/yavta.c b/yavta.c > index 4b531a0360fe..d0bcf7f19c7b 100644 > --- a/yavta.c > +++ b/yavta.c > @@ -1225,6 +1225,30 @@ static int video_parse_control_array(const struct v4l2_query_ext_ctrl *query, > > for ( ; isspace(*val); ++val) { }; > > + if (*val == '<') { > + /* Read the control value from the given file. */ > + ssize_t size; > + int fd; > + > + val++; > + fd = open(val, O_RDONLY); > + if (fd < 0) { > + printf("unable to open control file `%s'\n", val); > + return -EINVAL; > + } > + > + size = read(fd, ctrl->ptr, ctrl->size); > + if (size != (ssize_t)ctrl->size) { > + printf("error reading control file `%s' (%s)\n", val, > + strerror(errno)); > + close(fd); > + return -EINVAL; > + } > + > + close(fd); > + return 0; > + } > + > if (*val++ != '{') > return -EINVAL; > How about adding a new command line option to read the value from a file? I think that'd be cleaner. I'd also add support for writing binary values to a file, that would be quite convenient. Write support could be done later as well. For patches 1--3: Acked-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx> -- Sakari Ailus e-mail: sakari.ailus@xxxxxx XMPP: sailus@xxxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html