POWERMATE_PAYLOAD_SIZE_MAX
pm->data = usb_alloc_coherent(udev, POWERMATE_PAYLOAD_SIZE_MAX,
usb_free_coherent(udev, POWERMATE_PAYLOAD_SIZE_MAX,
if (maxp < POWERMATE_PAYLOAD_SIZE_MIN || maxp > POWERMATE_PAYLOAD_SIZE_MAX) {
POWERMATE_PAYLOAD_SIZE_MIN, POWERMATE_PAYLOAD_SIZE_MAX, maxp);
maxp = POWERMATE_PAYLOAD_SIZE_MAX;