Type Alias usbd_hw_poll 

pub type usbd_hw_poll = Option<unsafe extern "C" fn(dev: *mut usbd_device, callback: usbd_evt_callback)>;

Polls USB hardware for the events

Arguments

• dev (direction in) - pointer to usb device structure
• callback - callback to event processing subroutine

Aliased Type

pub enum usbd_hw_poll {
    None,
    Some(unsafe extern "C" fn(*mut _usbd_device, Option<unsafe extern "C" fn(*mut _usbd_device, u8, u8)>)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut _usbd_device, Option<unsafe extern "C" fn(*mut _usbd_device, u8, u8)>))

Some value of type T.