Function mmal_sys::mmal_port_event_get

pub unsafe extern "C" fn mmal_port_event_get(
    port: *mut MMAL_PORT_T, 
    buffer: *mut *mut MMAL_BUFFER_HEADER_T, 
    event: u32
) -> Type

Get an empty event buffer header from a port

@param port The port from which to get the event buffer header. @param buffer The address of a buffer header pointer, which will be set on return. @param event The specific event FourCC required. See the \ref MmalEvents "pre-defined events". @return MMAL_SUCCESS on success