Ubuntu – Installing Realtek 8188 wireless driver fails

11.10driversinstallationrealtekwireless

When I try and install the RTL8188CUS drivers downloaded from Realtek (using their install.sh shell script) I installed the drivers in 11.04 using individual commands to make, etc., and that worked OK, but using individual commands now gives the same error. What's changed in 11.10????

sudo bash install.sh

…all goes well until an error message appears

Authentication requested [root] for make driver: make ARCH=i386
CROSS_COMPILE= -C /lib/modules/3.0.0-12-generic/build
M=/home/karl/rtl8188cus/driver/rtl8192_8188CU_linux_v3.1.2590.20110922
modules make[1]: Entering directory
`/usr/src/linux-headers-3.0.0-12-generic'   CC [M] 
/home/karl/rtl8188cus/driver/rtl8192_8188CU_linux_v3.1.2590.20110922/core/rtw_cmd.o
In file included from
/home/karl/rtl8188cus/driver/rtl8192_8188CU_linux_v3.1.2590.20110922/core/rtw_cmd.c:24:0:
/home/karl/rtl8188cus/driver/rtl8192_8188CU_linux_v3.1.2590.20110922/include/osdep_service.h:49:29:
fatal error: linux/smp_lock.h: No such file or directory compilation
terminated. make[2]: ***
[/home/karl/rtl8188cus/driver/rtl8192_8188CU_linux_v3.1.2590.20110922/core/rtw_cmd.o]
Error 1 make[1]: ***
[_module_/home/karl/rtl8188cus/driver/rtl8192_8188CU_linux_v3.1.2590.20110922] Error 2 make[1]: Leaving directory
`/usr/src/linux-headers-3.0.0-12-generic' make: *** [modules] Error 2
Compile make driver error: 2, Please check error Mesg

Thanks, fossfreedom, for your attention.

I did a completely fresh install of Ubuntu 11.10. I then followed the troubleshooting pages for wireless networking and found that the realtek rtl8192cu driver was in the library, and used modprob (I think) to enable it as directed. It is associated with the realtek usb adaptor in Network Manager, and one can see the available wireless networks (so I know its working to some extent). When I attempt to connect to my wifi network, it prompts for the WEP code and tries and tries to connect. When it times out, it prompts for the code again.

I have stuck in an old Broadcom usb dongle, which connects happily using the WEP code.

So, my current guess is that it is a driver problem. Do I report a bug to Ubuntu, as it is part of the delivered ver 11.10? Or to Realtek?

Thanks for your reply, fossfreedom

I tried using uppercase for the WEP passphrase and also for the HEX WEP code, to no effect.

I have tried disablng WEP encryption on the router, and still the old Buffalo connects and the Realtek fails to connect… it seems slow also in recognising that the network is unencrypted (doesn't have the padlock on the little icon.

I will see about posting a bug with Ubuntu: I've asked the manufacturer to check with Realtek.

Any further advice welcomed.

Best Answer

to solve the "linux/smp_lock.h not found" error you need to edit this two files into the archive driver/rtl8192_8188CU_linux_v3.1.2590.20110922.tar.gz

file 1: include/rtw_io.h

Change osdep_service.h (line 49) linux/smp_lock.h to linux/smp.h

file 2: include/osdep_service.h

Change file rtw_io.h (line 36) linux/smp_lock.h to linux/smp.h

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I have modified the driver source, now it gets compiled seamlessly. I have tested it on Raring, running a 3.8.0.19 kernel, the module got loaded without a hitch, but I don't have such a realtek card to test it in action.

You can download it from here:

https://www.dropbox.com/s/cb3ritve01amaus/rtl_drivers_linux3.8.tar.bz2

Run make, make install and load it by modprobe rtl8192ce. Good luck :)

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sudo modprobe rtl8192cu

Also, you probably have to take your driver off of the blacklist in order for it to work. If you are trying to blacklist the kernel driver but have successfully installed the Realtek version it should not be an issue. I have installed Realtek drivers in the past and the Realtek driver will typically overide or install over the kernel version just as a newer version would during an update. I would try commenting out those three lines you added earlier before doing a reboot to see if that works. BTW, you need all three of those ones you blacklisted in order for rtl8192cu to work. (rtl8192cu rtlwifi and rtl8192c_common) They all depend on each other and need to be taken off of the blacklist. After you remove the blacklisted items and reboot.

Now you have to assign the driver to the usb device. So plug the device in.

First, find out the code you need for the following steps. I performed the following for the code '2001 330D'. All you need to do is replace your code for '2001 330D' if your output of lsusb is different.

lsusb

you should see something like this . . .

...
Bus 002 Device 020: ID 2001:330d D-Link Corp.

This would indicate your ID is 2001 330D. Again, if your's is different, substitute the correct value in the following commands.

sudo modprobe rtl8192cu
echo "2001 330D" | sudo tee /sys/bus/usb/drivers/rtl8192cu/new_id

To get the driver to load at boot . . .

sudo gedit /etc/modules

and add the line

rtl8192cu

Save and exit.

sudo gedit /etc/rc.local

and add the following

# Declare USB ID to rtl8192cu module
echo "2001 330D" | tee /sys/bus/usb/drivers/rtl8192cu/new_id

exit 0

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