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USBHost

usb_host

Trait USBHost 

Source 
pub trait USBHost {
    // Required methods
    fn control_transfer(
        &mut self,
        ep: &mut dyn Endpoint,
        bm_request_type: RequestType,
        b_request: RequestCode,
        w_value: WValue,
        w_index: u16,
        buf: Option<&mut [u8]>,
    ) -> Result<usize, TransferError>;
    fn in_transfer(
        &mut self,
        ep: &mut dyn Endpoint,
        buf: &mut [u8],
    ) -> Result<usize, TransferError>;
    fn out_transfer(
        &mut self,
        ep: &mut dyn Endpoint,
        buf: &[u8],
    ) -> Result<usize, TransferError>;
}
Expand description

Trait for host controller interface.

Required Methods§

Source

fn control_transfer( &mut self, ep: &mut dyn Endpoint, bm_request_type: RequestType, b_request: RequestCode, w_value: WValue, w_index: u16, buf: Option<&mut [u8]>, ) -> Result<usize, TransferError>

Issue a control transfer with an optional data stage to ep. The data stage direction is determined by the direction of bm_request_type.

On success, the amount of data transferred into buf is returned.

Source

fn in_transfer( &mut self, ep: &mut dyn Endpoint, buf: &mut [u8], ) -> Result<usize, TransferError>

Issue a transfer from ep to the host.

On success, the amount of data transferred into buf is returned.

Source

fn out_transfer( &mut self, ep: &mut dyn Endpoint, buf: &[u8], ) -> Result<usize, TransferError>

Issue a transfer from the host to ep.

On success, the amount of data transferred from buf is returned. This should always be equal to buf.len().

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§