Hello,
We are currently trying to make a Wifi USB key (Edimax EW7811Un) working, but we have some issues.
This USB wifi key works with RTL8192CU driver, We added it in the kernel defconfig file (CONFIG_RTL8192CU =m), the driver was loaded but we can't find any wifi network.
When we plug the USB key :
[ 38.453736] usb 1-1.1: new high-speed USB device number 3 using ci_hdrc
[ 38.651259] cfg80211: Calling CRDA to update world regulatory domain
[ 38.730337] rtl8192cu: Chip version 0x10
[ 38.827338] rtl8192cu: MAC address: 74:da:38:6a:e4:da
[ 38.832428] rtl8192cu: Board Type 0
[ 38.836605] rtl_usb: rx_max_size 15360, rx_urb_num 8, in_ep 1
[ 38.842567] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin
[ 38.850178] usbcore: registered new interface driver rtl8192cu
[ 38.862832] rtlwifi: wireless switch is on
After that we run
ifconfig wlan0 up
[ 46.680949] rtl8192cu: MAC auto ON okay!
[ 46.719251] rtl8192cu: Tx queue select: 0x05
[ 47.113837] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
With ifconfig we can see wlan0
wlan0 Link encap:Ethernet HWaddr 74:DA:38:6A:E4:DA
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
But the scan does not give any results (Even if the wifi router is at 1m away)
root@colibri-imx6:~# iwlist wlan0 scan
wlan0 No scan results
Have you ever encountered this issue? Did I miss something?
Regards,
Pierre-Olivier
已解决! 转到解答。
Hi Pierre-Olivier
this may be driver issue so one can try to get updated driver from realtek site
https://adamscheller.com/systems-administration/rtl8192cu-fix-wifi/
14.04 - RealTek Wireless adapter issues. (RTL8192ce and RTL8192cu) - Ask Ubuntu
Best regards
igor
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Hi Pierre-Olivier
this may be driver issue so one can try to get updated driver from realtek site
https://adamscheller.com/systems-administration/rtl8192cu-fix-wifi/
14.04 - RealTek Wireless adapter issues. (RTL8192ce and RTL8192cu) - Ask Ubuntu
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------