Memorial day is 05/25/2015 – Orders will ship out on May 26th. There will not be any deliveries or shipping on Monday. Any order placed after 11am ET on Friday May 22nd will not start to ship out until Tuesday May 26th.

USB Wifi RTL8188S doesn't work
Moderators: adafruit_support_bill, adafruit

Forum rules
Talk about Adafruit Raspberry Pi® accessories! Please do not ask for Linux support, this is for Adafruit products only! For Raspberry Pi help please visit: http://www.raspberrypi.org/phpBB3/

USB Wifi RTL8188S doesn't work

by max246 on Mon Oct 22, 2012 3:02 am

I have a usb wifi that has RTL8188S as chip but I can't make it working on my Raspberry PI - Occidentalisv02.
I have tried on the normal version of Raspberry PI and it worked without typing anything to install the driver.

This is my output:

[ 157.963832] usb 1-1.3.3: new high speed USB device number 9 using dwc_otg
[ 158.066508] usb 1-1.3.3: New USB device found, idVendor=0df6, idProduct=005b
[ 158.066557] usb 1-1.3.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 158.066579] usb 1-1.3.3: Product: RTL8188S WLAN Adapter
[ 158.066596] usb 1-1.3.3: Manufacturer: Manufacturer Realtek
[ 158.066613] usb 1-1.3.3: SerialNumber: 00e04c000001


I have checked that I have the driver, I also tried to installed from a guide and loaded it ( http://www.jtek.cz/?p=21 ), why on your version I can't make it work?
There is missing something?
max246
 
Posts: 7
Joined: Sat Mar 17, 2012 4:46 pm

Re: USB Wifi RTL8188S doesn't work

by adafruit on Mon Oct 22, 2012 8:41 pm

what does ifconfig -a report?

adafruit
 
Posts: 11904
Joined: Thu Apr 06, 2006 4:21 pm
Location: nyc

Re: USB Wifi RTL8188S doesn't work

by max246 on Tue Oct 23, 2012 2:53 am

This is the result:

$ ifconfig -a
eth0 Link encap:Ethernet HWaddr b8:27:eb:11:e7:7e
inet addr:192.168.0.17 Bcast:192.168.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:76 errors:0 dropped:0 overruns:0 frame:0
TX packets:82 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:8409 (8.2 KiB) TX bytes:12920 (12.6 KiB)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:8 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1104 (1.0 KiB) TX bytes:1104 (1.0 KiB)


I'd some experience about wifi and I thought that I just need to UP the wlan0 but it didn't work

$ sudo ifconfig wlan0 up
wlan0: ERROR while getting interface flags: No such device
max246
 
Posts: 7
Joined: Sat Mar 17, 2012 4:46 pm

Re: USB Wifi RTL8188S doesn't work

by adafruit on Tue Oct 23, 2012 11:51 am

make sure you're powering it with a high quality power supply. that can cause problems

adafruit
 
Posts: 11904
Joined: Thu Apr 06, 2006 4:21 pm
Location: nyc

Re: USB Wifi RTL8188S doesn't work

by adamhi on Tue Oct 23, 2012 2:11 pm

I also had some intermittent behavior with the miniUSB WiFi ( similar to http://www.adafruit.com/products/814, and then had initial trouble with the larger one Adafruit sells (the one with the tall antenna, http://www.adafruit.com/products/1030). Using Google and trying lots of things, I did find something that seems to work (Someplace i found mentioned they thought it was a bug in the Adafruit distro.). Try this:

Code: Select all | TOGGLE FULL SIZE
 sudo rm /etc/udev/rules.d/70-persistent-net.rules


Then either try replugging in you USB WiFi, and give it a minute or two to do its thing, or Reboot. In fact, when i first got the larger USB WiFi from Adafruit http://www.adafruit.com/products/1030, it wouldn't work at all until i removed that file, and hasn't had a glitch since.

But as mentioned above, you do need a good power supply. I am using the 7-port USB hub http://www.adafruit.com/products/961 with it's good wall wart power supply.

BTW - the system will regenerate the /etc/udev/rules.d/70-persistent-net.rules file, so if you have similar trouble in the future, you can remove it again.

--adam

adamhi
 
Posts: 8
Joined: Wed Feb 16, 2011 11:10 pm