B43_PHY_G_LO_CONTROL
backup[13] = b43_phy_read(dev, B43_PHY_G_LO_CONTROL);
b43_phy_write(dev, B43_PHY_G_LO_CONTROL, 0);
b43_phy_write(dev, B43_PHY_G_LO_CONTROL, backup[13]);