Function libopencm3_sys::usbd_ep_read_packet [−][src]
pub unsafe extern "C" fn usbd_ep_read_packet(
usbd_dev: *mut usbd_device,
addr: u8,
buf: *mut c_void,
len: u16
) -> u16
Read a packet @param addr EP address @param len # of bytes @return Actual # of bytes read