From: Márton Németh <nm127@xxxxxxxxxxx>
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@xxxxxxxxxxx>
---
--- linux-2.6.29/drivers/media/video/uvc/uvc_v4l2.c.orig 2009-03-24 00:12:14.000000000 +0100
+++ linux-2.6.29/drivers/media/video/uvc/uvc_v4l2.c 2009-03-25 07:24:42.000000000 +0100
@@ -673,11 +673,19 @@ static long uvc_v4l2_do_ioctl(struct fil
{
struct v4l2_fmtdesc *fmt = arg;
struct uvc_format *format;
+ __u32 index;
+ enum v4l2_buf_type type;
if (fmt->type != video->streaming->type ||
fmt->index >= video->streaming->nformats)
return -EINVAL;
+ index = fmt->index;
+ type = fmt->type;
+ 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)
--
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