Struct fidl_fuchsia_hardware_usb_device::DeviceSynchronousProxy

pub struct DeviceSynchronousProxy { /* private fields */ }

Implementations

impl DeviceSynchronousProxy

pub fn new(channel: Channel) -> Self

pub fn into_channel(self) -> Channel

pub fn wait_for_event(&self, deadline: Time) -> Result<DeviceEvent, Error>

Waits until an event arrives and returns it. It is safe for other threads to make concurrent requests while waiting for an event.

pub fn get_device_speed(&self, ___deadline: Time) -> Result<u32, Error>

Returns the speed of the USB device as a usb_speed_t value.

pub fn get_device_descriptor( &self, ___deadline: Time ) -> Result<[u8; 18], Error>

Returns the device’s USB device descriptor.

pub fn get_configuration_descriptor_size( &self, config: u8, ___deadline: Time ) -> Result<(i32, u16), Error>

Returns the total size of the USB configuration descriptor for the given configuration.

pub fn get_configuration_descriptor( &self, config: u8, ___deadline: Time ) -> Result<(i32, Vec<u8>), Error>

Returns the device’s USB configuration descriptor for the given configuration.

pub fn get_string_descriptor( &self, desc_id: u8, lang_id: u16, ___deadline: Time ) -> Result<(i32, String, u16), Error>

Fetches a string descriptor from the USB device.

desc_id : The ID of the string descriptor to fetch, or 0 to fetch the language table instead.

lang_id : The language ID of the string descriptor to fetch. If no matching language ID is present in the device’s language ID table, the first entry of the language ID table will be substituted. actual_lang_id : The actual language ID of the string fetched, or 0 for the language ID table.

The worst case size for the payload of a language ID table should be 252 bytes, meaning that a 256 byte buffer should always be enough to hold any language ID table.

The worst case size for a UTF-8 encoded string descriptor payload should be 378 bytes (126 UTF-16 code units with a worst case expansion factor of 3)

pub fn set_interface( &self, interface_number: u8, alt_setting: u8, ___deadline: Time ) -> Result<i32, Error>

Selects an alternate setting for an interface on a USB device.

pub fn get_device_id(&self, ___deadline: Time) -> Result<u32, Error>

Returns an implementation specific device ID for a USB device. For informational purposes only.

pub fn get_hub_device_id(&self, ___deadline: Time) -> Result<u32, Error>

Returns the implementation specific device ID for the hub that a USB device is connected to. For informational purposes only.

pub fn get_configuration(&self, ___deadline: Time) -> Result<u8, Error>

Returns the device’s current configuration.

pub fn set_configuration( &self, configuration: u8, ___deadline: Time ) -> Result<i32, Error>

Sets the device’s current configuration.

Trait Implementations

impl Debug for DeviceSynchronousProxy

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

Formats the value using the given formatter.

impl SynchronousProxy for DeviceSynchronousProxy

type Proxy = DeviceProxy

The async proxy for the same protocol.

type Protocol = DeviceMarker

The protocol which this Proxy controls.

fn from_channel(inner: Channel) -> Self

Create a proxy over the given channel.

fn into_channel(self) -> Channel

Convert the proxy back into a channel.

fn as_channel(&self) -> &Channel

Get a reference to the proxy’s underlying channel.