modprobe -r rt2870sta ; modprobe rt2870sta ; dmesg | tail -2

[ 6829.237328] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 6836.773334] usb 1-2: USB disconnect, address 6
[ 6837.100555] usb 1-2: new high speed USB device using ehci_hcd and address 7
[ 6837.248879] usb 1-2: New USB device found, idVendor=7392, idProduct=7718
[ 6837.248887] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 6837.248894] usb 1-2: Product: 802.11 n WLAN
[ 6837.248899] usb 1-2: Manufacturer: Ralink
[ 6837.249080] usb 1-2: configuration #1 chosen from 1 choice
[ 6837.279777] phy2: Selected rate control algorithm 'minstrel'
[ 6837.281440] Registered led device: rt2800usb-phy2::radio
[ 6837.281523] Registered led device: rt2800usb-phy2::assoc
[ 6837.281603] Registered led device: rt2800usb-phy2::quality
[ 6967.072061] usbcore: deregistering interface driver rt2870
[ 6967.072135] <--- rtusb exit
[ 6967.077572] rt2870sta: module is from the staging directory, the quality is unknown, you have been warned.
[ 6967.087094] rtusb init --->
[ 6967.087168] usbcore: registered new interface driver rt2870
[ 7239.570552] rt2800usb 1-2:1.0: firmware: requesting rt2870.bin
[ 7239.776444] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 8317.829952] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 8872.512033] usbcore: deregistering interface driver rt2870
[ 8872.512101] <--- rtusb exit
[ 8872.517138] rt2870sta: module is from the staging directory, the quality is unknown, you have been warned.
[ 8872.526607] rtusb init --->
[ 8872.526675] usbcore: registered new interface driver rt2870