Posts: 2
Joined: Sun Jun 17, 2012 2:16 am

Wifi r8712u driver problems

Sun Jun 17, 2012 2:26 am

I just purchased a Belkin F7D1101 for my pi. It is listed as working on the eii with the use of the Realtek r8712u kernel module. The chipset is the RTL8188SU, and according to Debian's info page, r8712u is the way to go. I cannot, however, get the driver to work. I installed it as per the instructions here (2nd post): http://www.raspberrypi.org/phpBB3/viewt ... 46&p=95456, and initally was successful. I then rebooted, and the driver now fails. It is not listed under lsmod, and

Code: Select all

Sudo modprobe r8712u
Gives the error

Code: Select all

FATAL: error inserting r8712u (gives file path) invalid module format
I have heard that there is a bug in the latest firmware that breaks this driver, but I need the newest firmware, since without it my sdcard breaks. (the waiting for interrupt error). I am using a powered USB hub that seems to work fine. Any ideas? I have never compiled anything by hand before, so if that is what I must do, try to give simple instructions. Thanks! Beyond this, I am loving my pi! Better, There always seems to be a piece left on the plate...

User avatar
Posts: 158
Joined: Sat May 19, 2012 5:22 pm
Location: Minneapolis, MN (USA)

Re: Wifi r8712u driver problems

Sun Jun 17, 2012 11:38 pm

That is an odd issue. Typically you'd see an error like this if the kernel module was compiled for the wrong architecture which is obviously not the case. So you say that it worked the first time, driver loaded and you could use the hardware? Then after a reboot it stopped...

I'd try executing depmod again (sudo depmod -a) and then try loading the module again (sudo modprobe -v r8712u) and post the output.
xmpp: jecxjo@dukgo.com
Blog: http://jecxjo.motd.org/code

Return to “Troubleshooting”