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[media] videodev2.h: Fix VIDIOC_QUERYMENU ioctl regression

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Fixes a regression in VIDIOC_QUERYMENU introduced when the __s64 value
field was added to the union. On a 64-bit system this will change the
size of this v4l2_querymenu structure from 44 to 48 bytes, thus
breaking the ABI. By adding the packed attribute it is working again.

Tested on both 64 and 32 bit systems.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2012-04-17 08:41:58 -03:00 committed by Mauro Carvalho Chehab
parent 52dbb57c23
commit e245afe984
1 changed files with 1 additions and 1 deletions
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include/linux/videodev2.h
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@ -1176,7 +1176,7 @@ struct v4l2_querymenu {
__s64 value;
};
__u32 reserved;
};
} __attribute__ ((packed));
/* Control flags */
#define V4L2_CTRL_FLAG_DISABLED 0x0001