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synclink_gt: add compat_ioctl

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Add support for 32 bit ioctl on 64 bit systems for synclink_gt

Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Paul Fulghum 2007-05-10 22:22:43 -07:00 • committed by Linus Torvalds
parent 4c64c30a5c
commit 2acdb16944
3 changed files with 132 additions and 1 deletions
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24
include/linux/synclink.h
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@ -291,4 +291,28 @@ struct gpio_desc {
#define MGSL_IOCGGPIO _IOR(MGSL_MAGIC_IOC,17,struct gpio_desc)
#define MGSL_IOCWAITGPIO _IOWR(MGSL_MAGIC_IOC,18,struct gpio_desc)
#ifdef __KERNEL__
/* provide 32 bit ioctl compatibility on 64 bit systems */
#ifdef CONFIG_COMPAT
#include <linux/compat.h>
struct MGSL_PARAMS32 {
compat_ulong_t mode;
unsigned char loopback;
unsigned short flags;
unsigned char encoding;
compat_ulong_t clock_speed;
unsigned char addr_filter;
unsigned short crc_type;
unsigned char preamble_length;
unsigned char preamble;
compat_ulong_t data_rate;
unsigned char data_bits;
unsigned char stop_bits;
unsigned char parity;
};
#define MGSL_IOCSPARAMS32 _IOW(MGSL_MAGIC_IOC,0,struct MGSL_PARAMS32)
#define MGSL_IOCGPARAMS32 _IOR(MGSL_MAGIC_IOC,1,struct MGSL_PARAMS32)
#endif
#endif
#endif /* _SYNCLINK_H_ */