channel2freq_bg
channel2freq_bg(channel + 4));
b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(1));
b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel));
b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel));
channel2freq_bg(channel));
channel2freq_bg(channel + 4));
channel2freq_bg(channel));
channel2freq_bg(channel));