Function dvb_fe_open_flags 

pub unsafe extern "C" fn dvb_fe_open_flags(
    adapter: c_int,
    frontend: c_int,
    verbose: c_uint,
    use_legacy_call: c_uint,
    logfunc: dvb_logfunc,
    flags: c_int,
) -> *mut dvb_v5_fe_parms