vrkiu_write
vrkiu_write(chip, KIURST, 1); /* reset */
vrkiu_write(chip, KIUSCANLINE, 0); /* 96keys */
vrkiu_write(chip, KIUWKS, 0x18a4); /* XXX: scan timing! */
vrkiu_write(chip, KIUWKI, 450);
vrkiu_write(chip, KIUSCANREP, 0x8023);
vrkiu_write(sc->sc_chip, KIUINT, 0x7); /* Clear all interrupt */
static void vrkiu_write(struct vrkiu_chip *, int, unsigned short);