It seems that, in the rush to create the new V4L2 ioctl() API, the
VIDIOC_DQBUF code got cut-and-pasted in without being fixed up. I went
and made a patch, only to discover that Sascha Hauer beat me to it.
That patch doesn't seem to have been picked up yet, however. Since it's
important (streaming I/O will not work without it), here's an attempt to
spread it a bit more widely.
jon
From: Sascha Hauer <[email protected]>
Subject: [PATCH] copy-paste bug in videodev.c
Date: Mon, 11 Sep 2006 10:50:55 +0200
To: [email protected]
This patch fixes a copy-paste bug in videodev.c where the vidioc_qbuf()
function gets called for the dqbuf ioctl.
Signed-off-by: Sascha Hauer <[email protected]>
diff --git a/drivers/media/video/videodev.c
b/drivers/media/video/videodev.c
index 88bf2af..8abee33 100644
--- a/drivers/media/video/videodev.c
+++ b/drivers/media/video/videodev.c
@@ -739,13 +739,13 @@ static int __video_do_ioctl(struct inode
case VIDIOC_DQBUF:
{
struct v4l2_buffer *p=arg;
- if (!vfd->vidioc_qbuf)
+ if (!vfd->vidioc_dqbuf)
break;
ret = check_fmt (vfd, p->type);
if (ret)
break;
- ret=vfd->vidioc_qbuf(file, fh, p);
+ ret=vfd->vidioc_dqbuf(file, fh, p);
if (!ret)
dbgbuf(cmd,vfd,p);
break;
--
Dipl.-Ing. Sascha Hauer | http://www.pengutronix.de
Pengutronix - Linux Solutions for Science and Industry
Handelsregister: Amtsgericht Hildesheim, HRA 2686
Hannoversche Str. 2, 31134 Hildesheim, Germany
Phone: +49-5121-206917-0 | Fax: +49-5121-206917-9
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