B43_MMIO_GPIO_CONTROL
ctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL);
b43_write16(dev, B43_MMIO_GPIO_CONTROL, ctl);
ctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL);
b43_write16(dev, B43_MMIO_GPIO_CONTROL, ctl);
b43_maskset16(dev, B43_MMIO_GPIO_CONTROL, (~0xFC00 & 0xFFFF),