Enum fidl_fuchsia_hardware_usb_device::DeviceRequest

pub enum DeviceRequest {
    GetDeviceSpeed {
        responder: DeviceGetDeviceSpeedResponder,
    },
    GetDeviceDescriptor {
        responder: DeviceGetDeviceDescriptorResponder,
    },
    GetConfigurationDescriptorSize {
        config: u8,
        responder: DeviceGetConfigurationDescriptorSizeResponder,
    },
    GetConfigurationDescriptor {
        config: u8,
        responder: DeviceGetConfigurationDescriptorResponder,
    },
    GetStringDescriptor {
        desc_id: u8,
        lang_id: u16,
        responder: DeviceGetStringDescriptorResponder,
    },
    SetInterface {
        interface_number: u8,
        alt_setting: u8,
        responder: DeviceSetInterfaceResponder,
    },
    GetDeviceId {
        responder: DeviceGetDeviceIdResponder,
    },
    GetHubDeviceId {
        responder: DeviceGetHubDeviceIdResponder,
    },
    GetConfiguration {
        responder: DeviceGetConfigurationResponder,
    },
    SetConfiguration {
        configuration: u8,
        responder: DeviceSetConfigurationResponder,
    },
}

Variants

GetDeviceSpeed

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

Fields

responder: DeviceGetDeviceSpeedResponder

GetDeviceDescriptor

Returns the device’s USB device descriptor.

Fields

responder: DeviceGetDeviceDescriptorResponder

GetConfigurationDescriptorSize

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

Fields

config: u8

responder: DeviceGetConfigurationDescriptorSizeResponder

GetConfigurationDescriptor

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

Fields

config: u8

responder: DeviceGetConfigurationDescriptorResponder

GetStringDescriptor

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)

Fields

desc_id: u8

lang_id: u16

responder: DeviceGetStringDescriptorResponder

SetInterface

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

Fields

interface_number: u8

alt_setting: u8

responder: DeviceSetInterfaceResponder

GetDeviceId

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

Fields

responder: DeviceGetDeviceIdResponder

GetHubDeviceId

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

Fields

responder: DeviceGetHubDeviceIdResponder

GetConfiguration

Returns the device’s current configuration.

Fields

responder: DeviceGetConfigurationResponder

SetConfiguration

Sets the device’s current configuration.

Fields

configuration: u8

responder: DeviceSetConfigurationResponder

Implementations

impl DeviceRequest

pub fn into_get_device_speed(self) -> Option<DeviceGetDeviceSpeedResponder>

pub fn into_get_device_descriptor( self ) -> Option<DeviceGetDeviceDescriptorResponder>

pub fn into_get_configuration_descriptor_size( self ) -> Option<(u8, DeviceGetConfigurationDescriptorSizeResponder)>

pub fn into_get_configuration_descriptor( self ) -> Option<(u8, DeviceGetConfigurationDescriptorResponder)>

pub fn into_get_string_descriptor( self ) -> Option<(u8, u16, DeviceGetStringDescriptorResponder)>

pub fn into_set_interface(self) -> Option<(u8, u8, DeviceSetInterfaceResponder)>

pub fn into_get_device_id(self) -> Option<DeviceGetDeviceIdResponder>

pub fn into_get_hub_device_id(self) -> Option<DeviceGetHubDeviceIdResponder>

pub fn into_get_configuration(self) -> Option<DeviceGetConfigurationResponder>

pub fn into_set_configuration( self ) -> Option<(u8, DeviceSetConfigurationResponder)>

pub fn method_name(&self) -> &'static str

Name of the method defined in FIDL

Trait Implementations

impl Debug for DeviceRequest

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

Formats the value using the given formatter.