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-rw-r--r--include/linux/synclink.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/include/linux/synclink.h b/include/linux/synclink.h
index c8b042667af..5562fbf7209 100644
--- a/include/linux/synclink.h
+++ b/include/linux/synclink.h
@@ -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_ */