rt2x00usb_suspend  884 drivers/net/wireless/ralink/rt2x00/rt2x00usb.c int rt2x00usb_suspend(struct usb_interface *usb_intf, pm_message_t state)
rt2x00usb_suspend  405 drivers/net/wireless/ralink/rt2x00/rt2x00usb.h #define rt2x00usb_suspend	NULL