Dynamic device file system. More...

Detailed Description

Dynamic device file system.

This file system implementation allows devices to register file names for easier access to device drivers from shell commands etc.

The idea is similar to the /dev directory on Unix.

Files
file	random-vfs.h
	Random backends for devfs.

file	devfs.h
	DevFS public API.

Data Structures
struct	devfs
	A device "file" consists of a file name and an opaque pointer to device driver private data. More...

Typedefs
typedef struct devfs	devfs_t
	DevFS node typedef.

Functions
int	devfs_register (devfs_t *node)
	Register a node in DevFS.

int	devfs_unregister (devfs_t *node)
	Remove a registration from DevFS.

Variables
const vfs_file_system_t	devfs_file_system
	DevFS file system driver.

Typedef Documentation

◆ devfs_t

typedef struct devfs devfs_t

DevFS node typedef.

Definition at line 38 of file devfs.h.

Function Documentation

◆ devfs_register()

int devfs_register ( devfs_t * node )

Register a node in DevFS.

The node will immediately become available to vfs_open, if DevFS is already mounted somewhere.

If DevFS is not mounted, the node will be registered and will become available to vfs_open when DevFS is mounted.

Parameters

[in] node DevFS node to register

Returns: 0 on success; <0 on error

◆ devfs_unregister()

int devfs_unregister ( devfs_t * node )

Remove a registration from DevFS.

The node will no longer be available to vfs_open, but any already opened FDs will remain open.

Parameters

[in] node DevFS node to unregister

Returns: 0 on success; <0 on error

Variable Documentation

◆ devfs_file_system

const vfs_file_system_t devfs_file_system

extern

DevFS file system driver.

For use with vfs_mount

Detailed Description

Files

Data Structures

Typedefs

Functions