devfs.h

DevFS public API.

struct devfs devfs_t

DevFS node typedef.

const vfs_file_system_t devfs_file_system

DevFS file system driver.

For use with vfs_mount

int devfs_register(devfs.h::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

node:DevFS node to register

Return values

• 0 on success
• <0 on error

int devfs_unregister(devfs.h::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

node:DevFS node to unregister

Return values

• 0 on success
• <0 on error

struct devfs

A device “file” consists of a file name and an opaque pointer to device driver private data.

The file system is implemented as a linked list.

clist.h::clist_node_t list_entry

List item entry.

const char * path

File system relative path to this node.

const vfs.h::vfs_file_ops_t * f_op

Pointer to file operations table for this device.

void * private_data

Pointer to device driver specific data.