UbuntuHelp:WifiDocs/Driver/Madwifi
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Driver Information
- Driver Name: Madwifi
- Module Name: ath_pci
- Supports: PCI Devices with Atheros chipsets
{i} There will be usb support in a future release.
- Project Home Page: http://www.madwifi.org
Support Channels
- IRC: irc.freenode.com
- Channel: #madwifi
- Mailing lists: http://madwifi.org/wiki/Resources
- http://madwifi.org/wiki/UserDocs
- Ubuntu Forums: http://ubuntuforums.org
- wiki resources: Self:WifiDocs
WEP info
- When using a shared key, the driver must be modified with this command for it to work
sudo iwpriv authmode 2
WPA info
Ubuntu Release Specific Info
Ubuntu 7.10 (Gutsy)
- The Madwifi driver has so far only been updated to include a few bug fixes.
Ubuntu 7.04 (Feisty)
- The wlanconfig tool is now available from the universe repository in the
madwifi-toolspackage.
Ubuntu 6.10 (Edgy)
- The version of Madwifi included in Ubuntu 6.10 was switched to madwifi-ng. So these devices will just work out of the box. Simply install and configure in the Networking control panel.
- The wlanconfig tool is not present in Ubuntu 6.10, but there is a backport package from 7.04 available.
Ubuntu 6.06 (Dapper)
- The version of Madwifi included with Ubuntu 6.06 is madwifi-old. This was considered to be more stable than the new madwifi-ng at the time of release.
- If you need WPA support then you will need to specify the Madwifi driver interface with wpa_supplicant.
Ubuntu 5.10 (Breezy)
- Madwifi is part of the breezy release (madwifi-old v .9.6.0). It is inside of the package
linux-restricted-modules-{kerenl v} - If a card is inserted and recognized during install then
linux-restricted-modules-{kernel v} will be installed.
Ubuntu Server Edition
See Router/Madwifi for details: do not follow the instructions on how to set the driver up in "master" mode by default.
Compile Newer Driver
<!> See relspec notes sections below to add comments and corrections about compiling
Madwifi-ng Compile
This howto will install the latest svn snapshot of the madwifi-ng driver for pci devices based on the atheros chipset. The difference between this and the other howtos on madwifi (that I've seen at time of writing this) are the others will update to the latest madwifi-old module and this installs madwifi-ng. The newer features found in the -ng version can be found here. This update is not necessary unless
- your pci device is not working with current version that comes with breezy.
- Or you can use if you removed restricted modules to use latest nvidia/fglrx drivers and want to try the new -ng driver.
- You build a custom kernel but note these instructions do not include steps to properly make and install when using custom kernel. You will just have to make sure you have correct headers and gcc compiler for the kernel you're using.
- Or you just want to try and use the latest driver. It may improve performance or fix an unknown bug or add a feature you've been waiting for.
{i} Note: madwifi does not currently support USB devices with the atheros chipset and the roadmap shows it will be sometime before USB support is built into the driver(version 2.0). You can watch progress at www.madwifi.org /!\ Warning: The atheros driver that comes with Breezy is part of the restricted-modules package. This will need to be removed before you can install the latest driver. All modules in this package will be removed and may affect areas such as your graphics driver. If you need to use a module in this package then you will also have to recompile and install that module also. There are howtos on the latest nvidia and fglrx in the breezy tips and tricks section of the form. Here are the modules in the restricted-module package
Currently the following modules are included: - madwifi (Atheros) - fglrx (ATI) - nvidia - fcdsl, fcdsl2, fcdslsl, fcdslslusb, fcdslusb, fcdslusb2, fcdslusba, fcpci, fcpcmcia, fcpcmcia_cs, fcusb, fxusb (AVM ISDN) - ltmodem (Winmodem)
Preparation
You will need a working internet connection to complete this howto. Basic knowledge of moving around in the terminal is required. Remove the following package if installed:
sudo apt-get remove --purge linux-restricted-modules-`uname -r`
<!> See relspc release specific notes below for required packages to complete build and install.
Download
You can follow the instructions on MADWiFi if the following method is obsolete.
cd /usr/src
sudo svn checkout http://svn.madwifi.org/trunk madwifi-ng
move into the directory that was created
cd /usr/src/madwifi-ng
Build
Make sure you are using the same version of gcc to build your MADWiFi driver. If you are using Breezy, you probably should use gcc 3.4.5. A quick way to check the gcc version is
gcc --version
Before you start the command make, a small edit has to be done to a file so driver will make.
gksudo gedit Makefile.inc
towards the bottom is a line line that needs to be modified.
'''COPTS+= -Werror'''
change this line and remove the -Werror part so line now looks like this.
'''COPTS+='''
{i} This will not affect driver in anyway, it's just something in the way ubuntu built the kernel for breezy which will prevent installing the driver. Now
sudo make
There will be some warnings but you can ignore those. Look for any errors as these will need to be addressed before moving on to next step.
Install
sudo make install
You may get this warning
WARNING: It seems that there are modules left from previous MadWifi installations. You should consider removing them before you continue, or else you might experience problems during operation. Remove old modules? [l]ist, [r]emove, [i]gnore or e[x]it (l,r,i,[x]) ?
You should remove with option r If all goes well your last few lines should look like this.
(export MODULEPATH=/lib/modules/2.6.15-8-686/net; depmod -ae) echo "KERNELRELEASE=2.6.15-8-686" > ./install.log echo "DESTDIR=" >> ./install.log
Insert module
sudo modprobe ath_pci
Create the interface
With the new -ng module things work differently. An interface has to be created.
wlanconfig ath0 create wlandev wifi0 wlanmode sta
You should now have the latest madwifi driver working. Just configure your network and connect. If it does not then try to restart your network
sudo /etc/init.d/networking restart
or reboot
Uninstall
If you want to uninstall this module just move back to the directory where you built it:
cd /usr/src/madwifi-ng
and
sudo make uninstall
You can discuss problems in this forum thread for Brezy release. Or you can search for help on the madwifi site Anchor(relspec)
Compile -ng release-specific notes
Breezy
- Required packages needed to complete compilation
- build-essential
- sharutil
- gcc-3.4
- subversion
User Notes
Dapper
- Required packages needed to complete compilation
- build-essential
- subversion
- sharutil
