Struct IOUSBDevRequest 

#[repr(C)]
pub struct IOUSBDevRequest {
    pub bmRequestType: u8,
    pub bRequest: u8,
    pub wValue: u16,
    pub wIndex: u16,
    pub wLength: u16,
    pub pData: *mut c_void,
    pub wLenDone: u32,
}

Available on crate feature USB only.

Parameter block for control requests, using a simple pointer for the data to be transferred. Field: bmRequestType Request type: kUSBStandard, kUSBClass or kUSBVendor Field: bRequest Request code Field: wValue 16 bit parameter for request, host endianess Field: wIndex 16 bit parameter for request, host endianess Field: wLength Length of data part of request, 16 bits, host endianess Field: pData Pointer to data for request - data returned in bus endianess Field: wLenDone Set by standard completion routine to number of data bytes actually transferred

See also Apple’s documentation

Fields

bmRequestType: u8

bRequest: u8

wValue: u16

wIndex: u16

wLength: u16

pData: *mut c_void

wLenDone: u32

Trait Implementations

impl Clone for IOUSBDevRequest

Available on crate feature usb only.

fn clone(&self) -> IOUSBDevRequest

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IOUSBDevRequest

Available on crate feature usb only.

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

Formats the value using the given formatter.

impl Encode for IOUSBDevRequest

Available on crate features usb and objc2 only.

const ENCODING: Encoding

The Objective-C type-encoding for this type.

impl PartialEq for IOUSBDevRequest

Available on crate feature usb only.

fn eq(&self, other: &IOUSBDevRequest) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl RefEncode for IOUSBDevRequest

Available on crate features usb and objc2 only.

const ENCODING_REF: Encoding

The Objective-C type-encoding for a reference of this type.

impl Copy for IOUSBDevRequest

Available on crate feature usb only.

impl StructuralPartialEq for IOUSBDevRequest

Available on crate feature usb only.