Type Alias usbd_cfg_callback 

pub type usbd_cfg_callback = Option<unsafe extern "C" fn(dev: *mut usbd_device, cfg: u8) -> usbd_respond>;

USB set configuration callback function

called when SET_CONFIGURATION request issued

Arguments

• dev (direction in) - pointer to USB device
• cfg (direction in) - configuration number.

Note: if config is 0 device endpoints should be de-configured

Returns

TRUE if success

Aliased Type

pub enum usbd_cfg_callback {
    None,
    Some(unsafe extern "C" fn(*mut _usbd_device, u8) -> _usbd_respond),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut _usbd_device, u8) -> _usbd_respond)

Some value of type T.