ELANTECH_CUSTOM_CMD
res = send_aux_command(kbdc, ELANTECH_CUSTOM_CMD) != PSM_ACK;
res |= send_aux_command(kbdc, ELANTECH_CUSTOM_CMD) != PSM_ACK;
res = send_aux_command(kbdc, ELANTECH_CUSTOM_CMD) != PSM_ACK;
res |= send_aux_command(kbdc, ELANTECH_CUSTOM_CMD) != PSM_ACK;
res |= send_aux_command(kbdc, ELANTECH_CUSTOM_CMD) != PSM_ACK;
res |= send_aux_command(kbdc, ELANTECH_CUSTOM_CMD) != PSM_ACK;
res = send_aux_command(kbdc, ELANTECH_CUSTOM_CMD) != PSM_ACK;