EP1_CMD_WRITE_IO
cmd = EP1_CMD_WRITE_IO;
snd_usb_caiaq_send_command(cdev, EP1_CMD_WRITE_IO, val, 3);
snd_usb_caiaq_send_command(cdev, EP1_CMD_WRITE_IO, val, 4);
snd_usb_caiaq_send_command(cdev, EP1_CMD_WRITE_IO, val, 1);
EP1_CMD_WRITE_IO, cdev->control_state, 6);