Hi Dmitry, On Tue, Aug 23, 2011 at 5:17 PM, Dmitry Shipilov <dmitry.shipilov@xxxxxxxxx> wrote: > Hello! > > I was trying to use gatttool from the latest BlueZ 4.96 over LE link, > but it immediately fails with error message: > > $ sudo gatttool --adapter=hci0 --device=<BD addr> --primary > l2cap_bind: Invalid argument (22) It looks that you don't have a proper kernel. I sent an email last week containing links for the kernel & BlueZ. Search for: "Current status on BLE development" BR, Claudio -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html