PCI_USEC_CSR      873 drivers/net/wireless/ralink/rt2x00/rt61pci.c 		rt2x00mmio_register_write(rt2x00dev, PCI_USEC_CSR, 0x00000060);
PCI_USEC_CSR      887 drivers/net/wireless/ralink/rt2x00/rt61pci.c 		rt2x00mmio_register_write(rt2x00dev, PCI_USEC_CSR, 0x00000020);