Name
devfs_register -- Register a device entry.
Synopsis
devfs_handle_t devfs_register (devfs_handle_t dir, const char * name, unsigned int namelen, unsigned int flags, unsigned int major, unsigned int minor, umode_t mode, uid_t uid, gid_t gid, void * ops, void * info);
Arguments
- dir
The handle to the parent devfs directory entry. If this is NULL the
new name is relative to the root of the devfs.
- name
The name of the entry.
- namelen
The number of characters in name, not including a NULL
terminator. If this is 0, then name must be NULL-terminated and the
length is computed internally.
- flags
A set of bitwise-ORed flags (DEVFS_FL_*).
- major
The major number. Not needed for regular files.
- minor
The minor number. Not needed for regular files.
- mode
The default file mode.
- uid
The default UID of the file.
- gid
-- undescribed --
- ops
The &file_operations or &block_device_operations structure.
This must not be externally deallocated.
- info
An arbitrary pointer which will be written to the private_data
field of the &file structure passed to the device driver. You can set
this to whatever you like, and change it once the file is opened (the next
file opened will not see this change).
Description
Returns a handle which may later be used in a call to devfs_unregister.
On failure NULL is returned.