char name[NAME_MAX+1];
 };
 
-#define AUTOFS_IOC_READY      _IO(0x93, 0x60)
-#define AUTOFS_IOC_FAIL       _IO(0x93, 0x61)
-#define AUTOFS_IOC_CATATONIC  _IO(0x93, 0x62)
-#define AUTOFS_IOC_PROTOVER   _IOR(0x93, 0x63, int)
-#define AUTOFS_IOC_SETTIMEOUT32 _IOWR(0x93, 0x64, compat_ulong_t)
-#define AUTOFS_IOC_SETTIMEOUT _IOWR(0x93, 0x64, unsigned long)
-#define AUTOFS_IOC_EXPIRE     _IOR(0x93, 0x65, struct autofs_packet_expire)
+#define AUTOFS_IOCTL 0x93
+
+enum {
+       AUTOFS_IOC_READY_CMD = 0x60,
+       AUTOFS_IOC_FAIL_CMD,
+       AUTOFS_IOC_CATATONIC_CMD,
+       AUTOFS_IOC_PROTOVER_CMD,
+       AUTOFS_IOC_SETTIMEOUT_CMD,
+       AUTOFS_IOC_EXPIRE_CMD,
+};
+
+#define AUTOFS_IOC_READY        _IO(AUTOFS_IOCTL, AUTOFS_IOC_READY_CMD)
+#define AUTOFS_IOC_FAIL         _IO(AUTOFS_IOCTL, AUTOFS_IOC_FAIL_CMD)
+#define AUTOFS_IOC_CATATONIC    _IO(AUTOFS_IOCTL, AUTOFS_IOC_CATATONIC_CMD)
+#define AUTOFS_IOC_PROTOVER     _IOR(AUTOFS_IOCTL, AUTOFS_IOC_PROTOVER_CMD, int)
+#define AUTOFS_IOC_SETTIMEOUT32 _IOWR(AUTOFS_IOCTL, AUTOFS_IOC_SETTIMEOUT_CMD, compat_ulong_t)
+#define AUTOFS_IOC_SETTIMEOUT   _IOWR(AUTOFS_IOCTL, AUTOFS_IOC_SETTIMEOUT_CMD, unsigned long)
+#define AUTOFS_IOC_EXPIRE       _IOR(AUTOFS_IOCTL, AUTOFS_IOC_EXPIRE_CMD, struct autofs_packet_expire)
 
 #endif /* _UAPI_LINUX_AUTO_FS_H */
 
        autofs_packet_expire_direct_t expire_direct;
 };
 
-#define AUTOFS_IOC_EXPIRE_MULTI                _IOW(0x93, 0x66, int)
-#define AUTOFS_IOC_EXPIRE_INDIRECT     AUTOFS_IOC_EXPIRE_MULTI
-#define AUTOFS_IOC_EXPIRE_DIRECT       AUTOFS_IOC_EXPIRE_MULTI
-#define AUTOFS_IOC_PROTOSUBVER         _IOR(0x93, 0x67, int)
-#define AUTOFS_IOC_ASKUMOUNT           _IOR(0x93, 0x70, int)
+enum {
+       AUTOFS_IOC_EXPIRE_MULTI_CMD = 0x66, /* AUTOFS_IOC_EXPIRE_CMD + 1 */
+       AUTOFS_IOC_PROTOSUBVER_CMD,
+       AUTOFS_IOC_ASKUMOUNT_CMD = 0x70, /* AUTOFS_DEV_IOCTL_VERSION_CMD - 1 */
+};
+
+#define AUTOFS_IOC_EXPIRE_MULTI    _IOW(AUTOFS_IOCTL, AUTOFS_IOC_EXPIRE_MULTI_CMD, int)
+#define AUTOFS_IOC_EXPIRE_INDIRECT AUTOFS_IOC_EXPIRE_MULTI
+#define AUTOFS_IOC_EXPIRE_DIRECT   AUTOFS_IOC_EXPIRE_MULTI
+#define AUTOFS_IOC_PROTOSUBVER     _IOR(AUTOFS_IOCTL, AUTOFS_IOC_PROTOSUBVER_CMD, int)
+#define AUTOFS_IOC_ASKUMOUNT       _IOR(AUTOFS_IOCTL, AUTOFS_IOC_ASKUMOUNT_CMD, int)
 
 #endif /* _LINUX_AUTO_FS4_H */