usbms_service_wheel_state
err = usbms_service_wheel_state(q, datap, VUIDGWHEELSTATE);
err = usbms_service_wheel_state(q, datap, VUIDSWHEELSTATE);
if (err = usbms_service_wheel_state(q, mp->b_cont,
if (err = usbms_service_wheel_state(q, mp->b_cont,
static int usbms_service_wheel_state(queue_t *, mblk_t *, uint_t);