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~+''This guide is only applicable for '''server''' installations of Ubuntu. If you are running a '''desktop''' installation of Ubuntu, try [[WifiDocs/Driver/Madwifi]] and the [[http://madwifi.org/wiki/|MadWifi wiki]] for more information.''+~

= Checking For Atheros Chipsets =

First, verify that your wireless network adapter requires the madwifi device drivers.

Issue the following command:
{{{
sudo lspci | grep Atheros
}}}
If there is any output similar to that below, you should definitely install madwifi.
{{{
00:0e.0 Ethernet controller: Atheros Communications, Inc. AR5212 802.11abg NIC (rev 01)
}}}
If there is no output, try looking through [[http://madwifi.org/wiki/Compatibility]] to see if your network adapter is supported.

= Installation =
=== Ubuntu 8.04 ===
The drivers are in the restricted modules package; also see the `madwifi-tools` package.
{{{
sudo apt-get install linux-restricted-modules madwifi-tools 
}}}
=== Ubuntu 7.10 ===
Navigate to [[http://madwifi.org/]] and download and extract the latest version of the madwifi drivers (0.9.4 at the time of this writing)
{{{
wget http://internap.dl.sourceforge.net/sourceforge/madwifi/madwifi-0.9.4.tar.gz
tar -xvzf madwifi-0.9.4.tar.gz
cd madwifi-0.9.4
}}}

Download the necessary tools, compile and install the module
{{{
sudo apt-get install build-essential linux-headers-server
make
sudo make install
}}}
== Setting Master Mode ==
 __'''NOTE'''__: If you are plan on using this wireless network adapter in "master" mode (i. e. for the purposes of setting up a wireless router), create the file `/etc/modprobe.d/madwifi` and add the following to it:
  {{{
options ath_pci autocreate=ap
}}}
 This will tell madwifi to set your wireless device (ath0) to master mode.

Finally, load the module
{{{
sudo modprobe ath_pci
}}}

= Sources =
 1. [[http://madwifi.org/wiki/UserDocs/FirstTimeHowTo|MadWifi 'First Time User' HOWTO]]
 1. [[http://madwifi.org/wiki/UserDocs/Distro/Ubuntu|MadWifi Ubuntu Notes]]
 1. [[http://madwifi.org/wiki/UserDocs/autocreate|VAP Autocreation Upon modprobe ath_pci]]