drivebay_writereg
drivebay_writereg(sc, PCAGPIO_CONFIG, 0xf8);
drivebay_writereg(sc, PCAGPIO_OUTPUT, reg);
drivebay_writereg(sc, PCAGPIO_OUTPUT, reg);
drivebay_writereg(sc, PCAGPIO_OUTPUT, reg);
static void drivebay_writereg(struct drivebay_softc *, int, uint32_t);