SEC_CSR3
reg = rt2x00mmio_register_read(rt2x00dev, SEC_CSR3);
reg = rt2x00mmio_register_read(rt2x00dev, SEC_CSR3);
rt2x00mmio_register_write(rt2x00dev, SEC_CSR3, reg);
reg = rt2x00usb_register_read(rt2x00dev, SEC_CSR3);
reg = rt2x00usb_register_read(rt2x00dev, SEC_CSR3);
rt2x00usb_register_write(rt2x00dev, SEC_CSR3, reg);