B43_MMIO_PHY0
b43_write16(dev, B43_MMIO_PHY0, on ? 0 : 0xF4);
b43_write16(dev, B43_MMIO_PHY0, (b43_read16(dev, B43_MMIO_PHY0)
b43_write16(dev, B43_MMIO_PHY0, b43_read16(dev, B43_MMIO_PHY0)