MAC_CSR14
rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11);
rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x2121);
reg = rt2x00mmio_register_read(led->rt2x00dev, MAC_CSR14);
rt2x00mmio_register_write(led->rt2x00dev, MAC_CSR14, reg);
reg = rt2x00usb_register_read(led->rt2x00dev, MAC_CSR14);
rt2x00usb_register_write(led->rt2x00dev, MAC_CSR14, reg);