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V4L (926_2): Moves compat32 functions from fs to v4l subsystem

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This moves the 32 bit ioctl compatibility handlers for
Video4Linux into a new file and adds explicit calls to them
to each v4l device driver.

Unfortunately, there does not seem to be any code handling
the v4l2 ioctls, so quite often the code goes through two
separate conversions, first from 32 bit v4l to 64 bit v4l,
and from there to 64 bit v4l2. My patch does not change
that, so there is still much room for improvement.

Also, some drivers have additional ioctl numbers, for
which the conversion should be handled internally to
that driver.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
This commit is contained in:
Arnd Bergmann
2006-01-09 15:24:57 -02:00
committed by Mauro Carvalho Chehab
parent 5367f2d67c
commit 0d0fbf8152
42 changed files with 362 additions and 273 deletions
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3
include/linux/videodev2.h
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@ -1117,6 +1117,9 @@ typedef int (*v4l2_kioctl)(struct inode *inode, struct file *file,
unsigned int cmd, void *arg);
int v4l_compat_translate_ioctl(struct inode *inode, struct file *file,
int cmd, void *arg, v4l2_kioctl driver_ioctl);
/* 32 Bits compatibility layer for 64 bits processors */
extern long v4l_compat_ioctl32(struct file *file, unsigned int cmd,
unsigned long arg);
#endif /* __KERNEL__ */
#endif /* __LINUX_VIDEODEV2_H */