Difference between revisions of "Rt2x00 beta driver"

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#REDIRECT [[Wireless network configuration#rt2x00]]
This page describes how you can make the new '''rt2x00''' Beta drivers work. This page '''does not''' describe the legacy '''rt2500''', '''rt2400''' and '''rt2570''' drivers derived from the original Ralink drivers.
At the time of this writing, only the '''rt2560''' PCI and PcCard chipsets ('''rt2500pci''' driver) are known to work in Open, WEP or WPA (PSK and EAP) mode. So far, there are no success stories with '''rt2400pci''', '''rt2500usb''' and '''rt61pci''' drivers. If you succeed in using these drivers, please add a comment here.
The '''rt2x00''' drivers are supposed to work with SMP kernels, but I did not test this myself. Please add comments here if you were able to use the driver with an SMP kernel.
= Installing necessary tools =
== ieee80211-utils ==
The rt2x00 drivers are based on the new '''DeviceScape ieee80211''' stack. The stack itself is compiled and installed along with the driver. But there are some tools required to make the devices work. These are in the '''ieee80211-utils''' package.
I submitted an [http://aur.archlinux.org/packages.php?do_Details=1&ID=3672 AUR package] and uploaded a [http://www-users.rwth-aachen.de/thomas.baechler/arch/brain0/os/i686/ieee80211-utils-051219-1.pkg.tar.gz binary package] to my repo:
Server = http://www-users.rwth-aachen.de/thomas.baechler/arch/brain0/os/i686</nowiki>
Note that the DeviceScape stack is still in development and both these tools and the necessary steps to activate the devices are likely to change in the future.
== wpa_supplicant ==
DeviceScape has its own '''dscape''' driver for wpa_supplicant. There are reports that wpa_supplicant also works with the '''wext''' driver, but I didn't test this. If you want to try the '''wext''' driver, you can use the '''wpa_supplicant''' package from the repos.
To use the '''dscape''' driver, you need to apply [http://kernel.org/pub/linux/kernel/people/jbenc/ieee80211-utils/wpa_supplicant/wpa_supplicant-0.4.7_dscape-02.patch this patch] to wpa_supplicant. You can also use the [http://www-users.rwth-aachen.de/thomas.baechler/arch/brain0/os/i686/wpa_supplicant-dscape-0.4.7-1.pkg.tar.gz wpa_supplicant-dscape package] from my repo.
= Installing the driver =
The '''rt2x00 Beta 3''' (as posted in the AUR) and older version are known to '''NOT WORK'''. In order to have a working driver, you '''MUST''' use the new rewrite based on the DeviceScape stack. This new driver is (at the time of this writing) only available as a [http://rt2x00.serialmonkey.com/rt2x00-cvs-daily.tar.gz CVS snapshot]. To install the driver, unpack the driver, change to the '''rt2x00-cvs-2006XXXXXX''' directory and type
make install
// TODO: Create an updated PKGBUILD for the cvs snapshot
= Using the driver =
== Setting the interface up ==
If you have module autoloading enabled, the drivers should be loaded automatically when you boot your machine or insert the device. If this doesn't work or autoloading is disabled, load the modules manually:
modprobe 80211
modprobe rate_control
modprobe $driver
where $driver is one of the following: '''rt2500pci''', '''rt2400pci''', '''rt2500usb''' or '''rt61pci'''.
When the driver is loaded, you will have three new interfaces: '''wlan0''', '''wlan0.11''' and '''wlan0ap'''. These are virtual interfaces, that cannot be used directly. The command
/usr/sbin/sta_up.sh wlan0
will create a new device '''sta0'''. If you don't like the name '''sta0''', do
/usr/sbin/sta_up.sh wlan0 mywlan
to get a new device '''mywlan''' or whatever pleases you.
Now you can use normal '''iwconfig''' statements to configure your wlan interface and run '''ifconfig''' or '''dhcpcd''' to use the interface.
== Using wpa_supplicant ==
For example, to use wpa_supplicant, try
/usr/sbin/wpa_supplicant -wB -Ddscape -ista0 -c/etc/wpa_supplicant.conf
Replace '''-Ddscape''' with '''-Dwext''' if you have chosen to use the stock arch wpa_supplicant package. Note that wpa_supplicant didn't work with hidden essid in my tests.
// TODO: someone please confirm that wpa_supplicant also successfully associates to open or wep-encrypted networks, I only tried WPA-PSK and read success reports about WPA-EAP
== Using WEP ==
To enable WEP, use the following command:
dscape_crypt_conf -1tp "sta0" "ff:ff:ff:ff:ff:ff" WEP "$key"
where '''sta0''' is your wlan-interface and '''$key''' is the wep key. See
dscape_crypt_conf --help
for further help.
// TODO: Some please confirm that this works

Latest revision as of 13:51, 18 February 2014