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#ifndef _LINUX_DEVFS_FS_H
#define _LINUX_DEVFS_FS_H

#include <linux/ioctl.h>

#define DEVFSD_PROTOCOL_REVISION_KERNEL  5

#define DEVFSD_IOCTL_BASE       'd'

/*  These are the various ioctls  */
#define DEVFSDIOC_GET_PROTO_REV         _IOR(DEVFSD_IOCTL_BASE, 0, int)
#define DEVFSDIOC_SET_EVENT_MASK        _IOW(DEVFSD_IOCTL_BASE, 2, int)
#define DEVFSDIOC_RELEASE_EVENT_QUEUE   _IOW(DEVFSD_IOCTL_BASE, 3, int)
#define DEVFSDIOC_SET_DEBUG_MASK        _IOW(DEVFSD_IOCTL_BASE, 4, int)

#define DEVFSD_NOTIFY_REGISTERED    0
#define DEVFSD_NOTIFY_UNREGISTERED  1
#define DEVFSD_NOTIFY_ASYNC_OPEN    2
#define DEVFSD_NOTIFY_CLOSE         3
#define DEVFSD_NOTIFY_LOOKUP        4
#define DEVFSD_NOTIFY_CHANGE        5
#define DEVFSD_NOTIFY_CREATE        6
#define DEVFSD_NOTIFY_DELETE        7

#define DEVFS_PATHLEN               1024  /*  Never change this otherwise the
                                              binary interface will change   */

struct devfsd_notify_struct
{   /*  Use native C types to ensure same types in kernel and user space     */
    unsigned int type;           /*  DEVFSD_NOTIFY_* value                   */
    unsigned int mode;           /*  Mode of the inode or device entry       */
    unsigned int major;          /*  Major number of device entry            */
    unsigned int minor;          /*  Minor number of device entry            */
    unsigned int uid;            /*  Uid of process, inode or device entry   */
    unsigned int gid;            /*  Gid of process, inode or device entry   */
    unsigned int overrun_count;  /*  Number of lost events                   */
    unsigned int namelen;        /*  Number of characters not including '\0' */
    /*  The device name MUST come last                                       */
    char devname[DEVFS_PATHLEN]; /*  This will be '\0' terminated            */
};


#endif  /*  _LINUX_DEVFS_FS_H  */