PHY_CSR4_IF_SELECT  600 drivers/net/wireless/ralink/rt2x00/rt61pci.h #define PHY_CSR4_IF_SELECT		FIELD32(0x20000000)
PHY_CSR4_IF_SELECT  515 drivers/net/wireless/ralink/rt2x00/rt73usb.h #define PHY_CSR4_IF_SELECT		FIELD32(0x20000000)