PWRCSR1
reg = rt2x00mmio_register_read(rt2x00dev, PWRCSR1);
rt2x00mmio_register_write(rt2x00dev, PWRCSR1, reg);
reg2 = rt2x00mmio_register_read(rt2x00dev, PWRCSR1);
rt2x00mmio_register_write(rt2x00dev, PWRCSR1, reg);
reg = rt2x00mmio_register_read(rt2x00dev, PWRCSR1);
rt2x00mmio_register_write(rt2x00dev, PWRCSR1, reg);
reg2 = rt2x00mmio_register_read(rt2x00dev, PWRCSR1);
rt2x00mmio_register_write(rt2x00dev, PWRCSR1, reg);