Struct FunctionDir 

pub struct FunctionDir { /* private fields */ }

USB gadget function directory container.

Stores the directory in configfs of a USB function and provides access methods.

Implementations

impl FunctionDir

pub fn new() -> Self

Creates an empty function directory container.

pub fn status(&self) -> Status

Create status accessor.

pub fn dir(&self) -> Result<PathBuf>

The USB gadget function directory in configfs.

pub fn driver(&self) -> Result<OsString>

Driver name.

pub fn instance(&self) -> Result<OsString>

Instance name.

pub fn property_path(&self, name: impl AsRef<Path>) -> Result<PathBuf>

Path to the specified property.

pub fn create_dir(&self, name: impl AsRef<Path>) -> Result<()>

Create a subdirectory.

pub fn create_dir_all(&self, name: impl AsRef<Path>) -> Result<()>

Create a subdirectory and its parent directories.

pub fn remove_dir(&self, name: impl AsRef<Path>) -> Result<()>

Remove a subdirectory.

pub fn read(&self, name: impl AsRef<Path>) -> Result<Vec<u8>>

Read a binary property.

pub fn read_string(&self, name: impl AsRef<Path>) -> Result<String>

Read and trim a string property.

pub fn read_os_string(&self, name: impl AsRef<Path>) -> Result<OsString>

Read an trim an OS string property.

pub fn write( &self, name: impl AsRef<Path>, value: impl AsRef<[u8]>, ) -> Result<()>

Write a property.

pub fn symlink( &self, target: impl AsRef<Path>, link: impl AsRef<Path>, ) -> Result<()>

Create a symbolic link.

pub fn dev_numbers(&self) -> Result<(u32, u32)>

Device major and minor numbers.

Reads the dev property from configfs, which contains the device numbers in the major:minor format.

Not all function types expose a dev property.

pub fn dev_path(&self) -> Result<PathBuf>

The device path in /dev that corresponds to this function.

Not all function types expose a dev property.

Trait Implementations

impl Clone for FunctionDir

fn clone(&self) -> FunctionDir

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FunctionDir

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for FunctionDir

fn default() -> Self

Returns the “default value” for a type.