b43_nphy_read_lpf_ctl
u16 value = b43_nphy_read_lpf_ctl(dev, 0);
lpf_ofdm_20mhz[core] = b43_nphy_read_lpf_ctl(dev, 0x154 + core * 0x10);
lpf_ofdm_40mhz[core] = b43_nphy_read_lpf_ctl(dev, 0x159 + core * 0x10);
lpf_11b[core] = b43_nphy_read_lpf_ctl(dev, 0x152 + core * 0x10);
tmp = b43_nphy_read_lpf_ctl(dev, 0);