PSMOUSE_CMD_POLL
PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0;
if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8)))
error = ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_POLL | 0x0300);
PSMOUSE_CMD_POLL | (psmouse->pktsize << 8));