pub unsafe extern "C" fn ble_l2cap_sig_update(
conn_handle: u16,
params: *mut ble_l2cap_sig_update_params,
cb: ble_l2cap_sig_update_fn,
cb_arg: *mut c_void,
) -> c_int
pub unsafe extern "C" fn ble_l2cap_sig_update(
conn_handle: u16,
params: *mut ble_l2cap_sig_update_params,
cb: ble_l2cap_sig_update_fn,
cb_arg: *mut c_void,
) -> c_int