1 #ifndef _LINUX_DEVFS_FS_H
2 #define _LINUX_DEVFS_FS_H
3 
4 #include <linux/ioctl.h>
5 
6 #define DEVFSD_PROTOCOL_REVISION_KERNEL  5
7 
8 #define	DEVFSD_IOCTL_BASE	'd'
9 
10 /*  These are the various ioctls  */
11 #define DEVFSDIOC_GET_PROTO_REV         _IOR(DEVFSD_IOCTL_BASE, 0, int)
12 #define DEVFSDIOC_SET_EVENT_MASK        _IOW(DEVFSD_IOCTL_BASE, 2, int)
13 #define DEVFSDIOC_RELEASE_EVENT_QUEUE   _IOW(DEVFSD_IOCTL_BASE, 3, int)
14 #define DEVFSDIOC_SET_DEBUG_MASK        _IOW(DEVFSD_IOCTL_BASE, 4, int)
15 
16 #define DEVFSD_NOTIFY_REGISTERED    0
17 #define DEVFSD_NOTIFY_UNREGISTERED  1
18 #define DEVFSD_NOTIFY_ASYNC_OPEN    2
19 #define DEVFSD_NOTIFY_CLOSE         3
20 #define DEVFSD_NOTIFY_LOOKUP        4
21 #define DEVFSD_NOTIFY_CHANGE        5
22 #define DEVFSD_NOTIFY_CREATE        6
23 #define DEVFSD_NOTIFY_DELETE        7
24 
25 #define DEVFS_PATHLEN               1024  /*  Never change this otherwise the
26 					      binary interface will change   */
27 
28 struct devfsd_notify_struct
29 {   /*  Use native C types to ensure same types in kernel and user space     */
30     unsigned int type;           /*  DEVFSD_NOTIFY_* value                   */
31     unsigned int mode;           /*  Mode of the inode or device entry       */
32     unsigned int major;          /*  Major number of device entry            */
33     unsigned int minor;          /*  Minor number of device entry            */
34     unsigned int uid;            /*  Uid of process, inode or device entry   */
35     unsigned int gid;            /*  Gid of process, inode or device entry   */
36     unsigned int overrun_count;  /*  Number of lost events                   */
37     unsigned int namelen;        /*  Number of characters not including '\0' */
38     /*  The device name MUST come last                                       */
39     char devname[DEVFS_PATHLEN]; /*  This will be '\0' terminated            */
40 };
41 
42 
43 #endif  /*  _LINUX_DEVFS_FS_H  */
44