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| author | Márton Németh <nm127@freemail.hu> | 2009-03-27 11:13:57 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-03-30 12:43:48 -0300 |
| commit | 8bbd90ce80d39d372857235f00c7abb208bd9e4f (patch) | |
| tree | c23deff65dae6323f7e8f58da4dd7156bd0279fd /drivers/media/video/uvc/uvc_v4l2.c | |
| parent | 0ce566da77767bc7dd6e4016a6544c9e814d2ed3 (diff) | |
| download | lwn-8bbd90ce80d39d372857235f00c7abb208bd9e4f.tar.gz lwn-8bbd90ce80d39d372857235f00c7abb208bd9e4f.zip | |
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
901.
References:
[1] V4L2 API specification, revision 0.24
http://v4l2spec.bytesex.org/spec/r8367.htm
[2] v4l-test: Test environment for Video For Linux Two API
http://v4l-test.sourceforge.net/
Signed-off-by: Márton Németh <nm127@freemail.hu>
Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/uvc/uvc_v4l2.c')
| -rw-r--r-- | drivers/media/video/uvc/uvc_v4l2.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/media/video/uvc/uvc_v4l2.c b/drivers/media/video/uvc/uvc_v4l2.c index 30781b82b6b5..2a80caa54fb4 100644 --- a/drivers/media/video/uvc/uvc_v4l2.c +++ b/drivers/media/video/uvc/uvc_v4l2.c @@ -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) |