Function ethercat_soem_sys::ec_adddatagram

pub unsafe extern "C" fn ec_adddatagram(
    frame: *mut c_void, 
    com: uint8, 
    idx: uint8, 
    more: boolean, 
    ADP: uint16, 
    ADO: uint16, 
    length: uint16, 
    data: *mut c_void
) -> uint16