> OK, and can you write what is needed to fill into buffer? Here is the critical part of a working patch I prepared for dell-laptop.c: get_buffer(); buffer->input[0] = 0x10000; buffer->input[1] = 0x51534554; buffer->input[3] = 0x1; dell_send_request(buffer, 17, 3); ret = buffer->output[0]; release_buffer(); -- Best regards, Michał Kępień -- To unsubscribe from this list: send the line "unsubscribe platform-driver-x86" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html