Commit 8bbd90ce authored by Márton Németh's avatar Márton Németh Committed by Mauro Carvalho Chehab

V4L/DVB (11293): uvcvideo: Add zero fill for VIDIOC_ENUM_FMT

When enumerating formats with VIDIOC_ENUM_FMT the uvcvideo driver does not
fill the reserved fields of the struct v4l2_fmtdesc with zeros as required by
V4L2 API revision 0.24 [1]. Add the missing initializations.

The patch was tested with v4l-test 0.10 [2] with CNF7129 webcam found on EeePC

[1] V4L2 API specification, revision 0.24

[2] v4l-test: Test environment for Video For Linux Two API default avatarMárton Németh <>
Signed-off-by: default avatarLaurent Pinchart <>
Signed-off-by: default avatarMauro Carvalho Chehab <>
parent 0ce566da
......@@ -673,11 +673,17 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
struct v4l2_fmtdesc *fmt = arg;
struct uvc_format *format;
enum v4l2_buf_type type = fmt->type;
__u32 index = fmt->index;
if (fmt->type != video->streaming->type ||
fmt->index >= video->streaming->nformats)
return -EINVAL;
memset(fmt, 0, sizeof(*fmt));
fmt->index = index;
fmt->type = type;
format = &video->streaming->format[fmt->index];
fmt->flags = 0;
if (format->flags & UVC_FMT_FLAG_COMPRESSED)
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment