Linux Rt5572 Ubuntu驱动

http://www.ctheroux.com/ralink-rt5572-based-wifi-usb-dongle-setup-on-ubuntu-12-04/

官方; https://www.mediatek.com/products/broadbandWifi/rt5572

make with parameter:

for error: error: macro "__DATE__" might prevent reproducible builds

sudo make EXTRA_CFLAGS+=-Wno-error=date-time EXTRA_CFLAGS+=-Wno-date-time

iwconfig:

lo        no wireless extensions.

wlx0013ef500083  IEEE 802.11abgn  ESSID:"8x8"  
          Mode:Managed  Frequency:2.437 GHz  Access Point: 98:9C:57:D7:36:93   
          Bit Rate=65 Mb/s   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=70/70  Signal level=-38 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:70  Invalid misc:10   Missed beacon:0

eno1      no wireless extensions.

https://askubuntu.com/questions/1030726/installing-drivers-for-wifi-external-card-from-cd

check driver of wifi: 
sudo lshw -C network
[sudo] password for zongkong: 
  *-network               
       description: Ethernet interface
       product: Ethernet Connection (2) I219-LM
       vendor: Intel Corporation
       physical id: 1f.6
       bus info: pci@0000:00:1f.6
       logical name: eno1
       version: 31
       serial: 00:d8:61:1d:2b:c3
       size: 100Mbit/s
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k duplex=full firmware=0.8-4 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
       resources: irq:124 memory:dff00000-dff1ffff
  *-network
       description: Wireless interface
       physical id: 2
       bus info: usb@1:14
       logical name: wlx0013ef500083
       serial: 00:13:ef:50:00:83
       capabilities: ethernet physical wireless
       configuration: broadcast=yes driver=rt2800usb driverversion=4.4.0-150-generic firmware=0.29 ip=192.168.43.27 link=yes multicast=yes wireless=IEEE 802.11abgn