- 1 Introduction
- 2 Installation (kernels from 2.6.29 and on)
- 3 Installation - source
- 4 Configuration
- 5 Configuration - File (maybe obsolete)
- 6 Troubleshooting
- 7 What next?
This entry is to aid you in configuring wireless settings for use with devices built with Ralink's rt2870 chipset. I hope that this entry will encourage further contribution regarding the configuration of ralink drivers.
Installation (kernels from 2.6.29 and on)
Since version 2.6.29 this driver has been included in the kernel
Installation - source
- Install the Drivers
- Grab the tarball from AUR
- Extract the Tarball
- tar xvf rt2870.tar.gz
- Enter the rt2870 directory and build and install the driver; the driver installed will be called rt2870sta.ko
- makepkg -i
- To simplify things, create a modprobe alias by editing /etc/modprobe.conf and entering the following line
alias ra0 rt2870
This driver is best configured using tools that utilize the standard wireless extensions, such as wpa_supplicant, iwconfig and their frontends.
Various driver specific options can be configured using iwpriv.
Configuration - File (maybe obsolete)
This section is to help you with the configuration file used to set the parameters of the device when it is brought up (e.g. ifconfig ra0 up).
- First, go into the src/ directory where you built the package and into the source code's directory. For example
- Copy the RT2870STA.dat file to /etc/Wireless/RT2870STA (if the directory doesn't exist, create it)
cp RT2870STA.dat /etc/Wireless/RT2870STA
- In this file, the first line must always contain the word Default, so it should be on the first line.
- Change the country/region channel number to the one that corresponds to your network:
- 0: channels 1 through 11
- 1: channels 1 through 12
- 2: channels 10 and 11 (according to ralink)
- 3: channels 10 through 13
- 4: channel 14
- 5: channels 1 through 14
- 6: channels 3 through 9
- 7: channels 5 through 13
- Add your country code. Valid country codes include the following
AG, AR, AW, AU, AT, BS, BB, BM, BR, BE, BG, CA, KY, CL, CN, CO, CR, CY, CZ, DK, DO, EC, SV, FI, FR, DE, GR, GU, GT, HT, HN, HK, HU, IS, IN, ID, E, IL, IT, JP, JO, LV, LI, LT, LU, MY, MT, MA, MX, NL, NZ, NO, PE, PT, PL, RO, RU, SA, CS, SG, SK, SI, ZA, KR, ES, SE, CH, TW, TR, GB, UA, AE, US, VE
- Edit the ssid to your network's ssid using either characters 0-z or 1~32 ascii characters
- Change the newtork type to whatever type of network you are using:
- Infra (for Infrastructure)
- Adhoc (for Ad-hoc)
- Edit the wireless mode using numbers 0 through 10:
- 0: legacy 11b/g mixed
- 1: legacy 11b only
- 2: legacy 11a only
- 3: legacy 11a/b/g mixed
- 4: legacy 11g only
- 5: 11a/b/g/n mixed
- 6: 11n only
- 7: 11g/n mixed
- 8: 11a/n mixed
- 9: 11b/g/n mixed
- 10: 11a/g/n mixed
I use 0
- Edit the channel number. This must correspond to the CountryRegion setting.
- Set authmode to one of the following options:
- Open (for WEP)
- WPA (WPA with WPA Supplicant)
- WPA2 (WPA2 with WPA supplicant)
The WPA and WPA2 options should work with netcfg and networkmanager. I use WPA so,
- Set the encryption type to one of the following:
I use TKIP, so
- If you're using WPA, set your WPAPSK
- If you're using WEP, first set the key index using numbers 1 through 4
- Now, set the key type (of your corresponding key index) so it know what kind of key to look for:
- 0: hex
- 1: ASCII string
- Provide your WEP key according to type, for example
For a string key
For a hex key
Here are some example options for reference.
Default CountryRegion=0 CountryRegionABand=7 CountryCode=US ChannelGeography=1 SSID=mywirelessnetwork NetworkType=Infra WirelessMode=0 Channel=10 BeaconPeriod=100 TxPower=100 BGProtection=0 TxPreamble=1 RTSThreshold=2347 FragThreshold=2346 TxBurst=0 PktAggregate=0 WmmCapable=0 AckPolicy=0;0;0;0 AuthMode=WPA EncrypType=TKIP WPAPSK=mysecretkey DefaultKeyID=1 Key1Type=0 Key1Str= Key2Type=0 Key2Str= Key3Type=0 Key3Str= Key4Type=0 Key4Str= PSMode=CAM FastRoaming=0 RoamThreshold=70 APSDCapable=0 APSDAC=0;0;0;0 HT_RDG=1 HT_EXTCHA=0 HT_OpMode=1 HT_MpduDensity=4 HT_BW=1 HT_AutoBA=1 HT_BADecline=0 HT_AMSDU=0 HT_BAWinSize=64 HT_GI=1 HT_MCS=33 HT_MIMOPSMode=3 IEEE80211H=0 TGnWifiTest=0 WirelessEvent=0 CarrierDetect=0
And a netcfg profile
CONNECTION="wireless" INTERFACE=ra0 SCAN="no" SECURITY="wpa" ESSID=mywirelessnetwork KEY="mysecretkey" IP="dhcp" TIMEOUT=20 DHCP_TIMEOUT=30
No need to set the channel in the netcfg profile since the .dat file took care of it.
dmesg:Bulk In Failed, CMDTHREAD_RESET_BULK_IN, etc
Bulk In Failed messages are not so bad, but a problem arises when and if the failed data leads to CMDTHREAD_RESET_BULK_IN which results in the module removing itself (e.g. modprobe -r rt2870sta).
This probably happened because you created your own RT2870STA.dat file. Go into the rt2870 tarball directory, into the source code directory, and replace the RT2870STA.dat in /etc/Wireless/RT2870STA/ with the preconfigured .dat file in the 2008_0718_RT2870_Linux_STA_v18.104.22.168 directory. From there, set the options that correspond to your network without removing any of the options.
rt2870CmdThread is using a lot of CPU
I don't specifically know why this occurs, but it is probably because you connected your device to a hub.
Kernel 2.6.30 issues
There seem to be multiple issues with the rt2870 driver in the 2.6.30 kernel. Please refer to this thread
Kernel 2.6.31 module conflicts
The 2.6.31 kernel caused the rt2870 driver to conflict with other wireless modules. The fix in this thread says that you need to blacklist the rt2800usb rt2x00usb and rt2x00lib modules by modifying the MODULES array in /etc/rc.conf
MODULES=( ... !rt2800usb !rt2x00usb !rt2x00lib ... )