Guilherme,

a algum tempo li um post no Planeta sobre como configurar uma rede 
wireless de placas com esse chipset Ralink.
Segue abaixo o link do post que espero lhe ser util.
http://planeta.ubuntubrasil.org/post/1243

Tem tbem um tuto muito bom do Morimoto no site dele sobre configuração 
de dispositivos wireless que tbem vale a consulta.
http://www.guiadohardware.net/guias/05/index4.php

T+
Arlei

Guilherme Wanderley André escreveu:
> Pessoal,
>
> Desculpe-me, ainda sou leigo pois usei linux a muito tempo atras e 
> estou tentando me atualizar novamente agora.
>
> Tenho uma placa de WiFi Edimax (chipset Ralink) instalada no micro o 
> qual instalei o Ubuntu 6.0 porém não estou conseguindo me comunicar 
> com a rede, aparentemente não está reconhecendo a placa.
>
> Simplesmente na configuração de Wireless não mostra nenhuma rede WiFi 
> proxima e mesmo configurando manualmente não consigo "pingar" nenhum 
> ip da rede.
>
> Anexei o arquivo README ao e-mail para que possam me auxiliar.
>
> O CD-ROM da placa possui arquivos .c e .h para configurar no linux e 
> justamente a parte que não estou conseguindo seguir é:
>
>
> For 2.6 series kernel:
> a.  run 'cd STA/Module'
>        'cp ../2.6.x/Makefile .'
>
> b.  $make -C /path/to/source SUBDIRS=$PWD modules
>    Where /path/to/source is the path to the source directory for the 
> (configured and built) target kernel.
>
> c.  run '/sbin/insmod rt2500.ko'  (as root)
>        '/sbin/ifconfig ra0 inet YOUR_IP up'
>
>
> For big endian platform:
> a.  replace Makefile with Makefile.BigEndian
>
>
> Obrigado antecipadamente pela ajuda.
>
> Grande abraço,
>
> Guilherme
>
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> * README
> *
> * Ralink Tech Inc.
> *
> * http://www.ralinktech.com
> *
>
> =======================================================================
> ModelName:
> ===========
> RT2500
>
>
> =======================================================================
> Supporting Kernel:
> ===================
> linux kernel 2.4 and 2.6 series.
> Tested in Redhat 7.3 or later, Fedora Core 1, Suse 8.0,8.1,9.0, 
> Mandrake 9.0->10.0, Slackware 9.0,9.1
>
>
>
> =======================================================================
> Description:
> =============
> This is a linux device driver for Ralink RT2500 b/g WLAN Card.
>
>
>
> =======================================================================
> Contents:
> =============
> ./2.4.x            : Makefile for kernel 2.4 series
> ./2.6.x            : Makefile for kernel 2.6 series
> *.c            : c files
> *.h            : header files
> Makefile.BigEndian    : Makefile for big endian platform
>
>
>
> =======================================================================
> Features:
> ==========
>   This driver implements basic IEEE802.11. Infrastructure and adhoc 
> mode with open or shared or WPA
>   authentication method. WEP-40 and WEP-104 TKIP and AES encryption,
>
>
>
> =======================================================================
> Build Instructions:
> ====================
> For 2.4 series kernel:
> a. $tar -xvzf RT2500-Linux-STA-x.x.x.x.tar.gz
>    go to "./RT2500-Linux-STA-x.x.x.x/Module" directory.
>
> b. Use 'chmod' command to change access right of following script files :
>   'load', 'unload', 'Configure'
>
> c. run 'cp ../2.6.x/Makefile .'
> d. $make config         # config build linux os version
>
> e. $make all            # compile driver source code
>
> f. $load                # load/insmod module(rt2500.o)
>
> Note: Script functionality:
> load            load module to kernel
> unload          unload module from kernel
> Configure       retrieve linux version
>
>
> For 2.6 series kernel:
> a.  run 'cd STA/Module'
>        'cp ../2.6.x/Makefile .'
>
> b.  $make -C /path/to/source SUBDIRS=$PWD modules
>    Where /path/to/source is the path to the source directory for the 
> (configured and built) target kernel.
>
> c.  run '/sbin/insmod rt2500.ko'  (as root)
>        '/sbin/ifconfig ra0 inet YOUR_IP up'
>
>
> For big endian platform:
> a.  replace Makefile with Makefile.BigEndian
>
>
>
> =======================================================================
> To BUILD UTILITY
> ====================
>
> a.  go to the "./Utility" directory
>
> b.  run 'qmake -o Makefile raconfig2500.pro'
>    If qmake command is not found in your system, you can download the 
> QT tool
>    'qt-x11-free-3.2.1' or later at
>    http://www.trolltech.com/
>
>    (qmake comes with RedHat 7.3 or later QT Package)
>
> c.  run 'make" to compile the utility source code.
>
> d.  After all, an execution file would be generated "RaConfig2500"
>    run "RaConfig2500" to config the driver as you want
>
>
>
> =======================================================================
> CONFIGURATION:
> ====================
> RT2500 driver can be configured via following interfaces,
> i.e. (i)"iwconfig" command, (ii)"iwpriv" command, (iii) configuration 
> file, (iv) RaConfig2500
>
> i)  iwconfig comes with kernel.
> ii) iwpriv usage, please refer to file "iwpriv_usage.txt" for details.
> iii)copy configuration file "RT2500STA.dat" to 
> /etc/Wireless/RT2500STA/RT2500STA.dat.
>    Please refer to 3.1) for details.
> iv) RT2500 provides API : RaConfig2500, please go to directory 
> ./Utility and refer to how-to-compile.txt
>
>
> Configuration File : RT2500STA.dat
>
> # Copy this file to /etc/Wireless/RT2500STA/RT2500STA.dat
> # This file is a binary file and will be read on loading rt2500.o module.
> #
> # Use "vi -b RT2500STA.dat" to modify settings according to your need.
> #
> # 1.) set NetworkType to "Adhoc" for using Adhoc-mode, otherwise using 
> as Infrastructure-mode
> # 2.) set Channel to "0" for auto-select on Infrastructure mode
> # 3.) set SSID for connecting to your Accss-point.
> # 4.) AuthMode can be "OPEN", "SHARED", "WPAPSK", "WPANONE"
> # 5.) EncrypType can be "NONE", "WEP", "TKIP", "AES"
> # for more information refer to the Readme file.
> #
> [Default]
> CountryRegion=0
> WirelessMode=0
> SSID=AP350
> NetworkType=Infra
> Channel=0
> AuthMode=OPEN
> EncrypType=NONE
> DefaultKeyID=1
> Key1Type=0
> Key1Str=0123456789
> Key2Type=0
> Key2Str=
> Key3Type=0
> Key3Str=
> Key4Type=0
> Key4Str=
> WPAPSK=abcdefghijklmnopqrstuvwxyz
> TXBurst=0
> TurboRate=0
> BGProtection=0
> ShortSlot=0
> TxRate=0
> RTSThreshold=2312
> FragThreshold=2312
> PSMode=CAM
> -----------------------------------------------
> syntax is 'Param'='Value' and describes below.
>
> 1. CountryRegion=value
>   value
>        0:      for use channel 1-11
>        1:      for use channel 1-11
>        2:      for use channel 1-13
>        3:      for use channel 10-11
>        4:      for use channel 10-13
>        5:      for use channel 14
>        6:      for use channel 1-14
>        7:      for use channel 3-9
> 2. WirelessMode=value
>   value
>        0:      802.11 B/G mixed
>        1:      802.11 B only
> 3. SSID=value
>   value
>         1~32 ascii characters.
> 4. NetworkType=Infra
>   value
>       Infra : infrastructure mode
>       Adhoc : adhoc mode
> 5. Channel=value
>    value
>        1~14 depends on  CountryRegion
> 6. AuthMode=value
>    value
>        OPEN      For Open System
>        SHARED    For Shared key system
>        WPAPSK
> 7. EncrypType=value
>    value
>        NONE      :For AuthMode=OPEN
>        WEP       :For AuthMode=OPEN or AuthMode=SHARED
>        TKIP      :For AuthMode=WPAPSK
>        AES       :For AuthMode=WPAPSK
> 8. DefaultKeyID=value
>    value
>        1 ~ 4
> 9. Key1Type=value
>    value
>        0:        Hexadecimal
>        1:        Ascii
> 10. Key1Str=value
>    value
>        10 or 26 hexadecimal characters eg: 012345678
>        5 or 13 ascii characters eg: passd
> 11. Key2Type=value
>    value
>        0:        Hexadecimal
>        1:        Ascii
> 12. Key2Str=value
>    value
>        10 or 26 hexadecimal characters eg: 012345678
>        5 or 13 ascii characters eg: passd
> 13. Key3Type=value
>    value
>        0:        Hexadecimal
>        1:        Ascii
> 14. Key3Str=value
>    value
>        10 or 26 hexadecimal characters eg: 012345678
>        5 or 13 ascii characters eg: passd
> 15. Key4Type=value
>    value
>        0:        Hexadecimal
>        1:        Ascii
> 16. Key4Str=value
>    value
>        10 or 26 hexadecimal characters eg: 012345678
>        5 or 13 ascii characters eg: passd
> 17. WPAPSK=value
>    value
>        8 ~ 63 characters
>          or
>        64 hexadecimal characters
> 18. TxBurst=value
>    value
>        0:        Disable
>        1:        Enable
> 19. TurboRate=value
>    value
>        0:        Disable
>        1:        Enable
> 20. BGProtection=value
>   value
>        0:        Auto
>        1:        Always On
>        2:        Always Off
> 21. ShortSlot=value
>    value
>        0:        Disable
>        1:        Enable
> 22. TxRate=value
>   value
>         0:     Auto
>         1:     1 Mbps
>         2:     2 Mbps
>         3:     5.5 Mbps
>         4:     11 Mbps
>         5:     6  Mbps  //WirelessMode must be 0
>         6:     9  Mbps  //WirelessMode must be 0
>         7:     12 Mbps  //WirelessMode must be 0
>         8:     18 Mbps  //WirelessMode must be 0
>         9:     24 Mbps  //WirelessMode must be 0
>        10:     36 Mbps  //WirelessMode must be 0
>        11:     48 Mbps  //WirelessMode must be 0
>        12:     54 Mbps  //WirelessMode must be 0
> 23. RTSThreshold=value
>    value
>        1 ~ 2312
> 24. FragThreshold=value
>    value
>        256 ~ 2312
> 25. PSMode=value
>    value
>    MAX_PSP   Power Saving Mode
>    CAM   CAM (Constantly Awake Mode)
>
> 26. AdhocOfdm=value
>    value
>    0:        Adhere WIFI spec, the Tx MAX rate will be 11Mbps in Adhoc 
> mode
>    1:        Violate WIFI spec, the Tx MAX rate will be 54Mbps in 
> Adhoc mode
>
> 27. StaWithEtherBridge=value
>    value
>    0:        Disable sta with ethernet to wireless bridge
>    1:        Enable sta with ethernet to wireless bridge
>
>
> MORE INFORMATION
> =================================================================================
>  
>
> If you want for rt2500 driver to auto-load at boot time:
> A) choose ra0 for first RT2500 WLAN card, ra1 for second RT2500 WLAN 
> card, etc.
>
> B) create(edit) 'ifcfg-ra0' file in /etc/sysconfig/network-scripts/,
>   edit( or add the line) in /etc/modules.conf:
>       alias ra0 rt2500
>
> C) edit(create) the file /etc/sysconfig/network-scripts/ifcfg-ra0
>   DEVICE='ra0'
>   ONBOOT='yes'
>
>
> NOTE:
>   if you use dhcp, add this line too .
>    BOOTPROTO='dhcp'
>
> *D) To ease the Default Gateway setting,
>    add the line
>    GATEWAY=x.x.x.x
>    in /etc/sysconfig/network
>
>
> ==================================================================================
>  
>
> = To install a device driver for Ralink RT2500 b/g WLAN card in AMD64 
> SUSE Linux =
> ==================================================================================
>  
>
> A.
> 1.Edit(or add the line) in /etc/modules.conf
>   alias ra0 rt2500
> 2.Create and edit 'ifcfg-ra0' file in /etc/sysconfig/network/
>   DEVICE='ra0'
>   ONBOOT='yes'
>   BOOTPROTO='dhcp'
>
> B. $tar -xvzf RT2500--Linux-STA-x.x.x.x.tar.gz
>   Go to "./RT2500-Linux-STA-x.x.x.x/Module" directory
>
> 1.Copy ./Module/2.6.x/Makefile to "./Module" directory
> 2.$make -C /usr/src/linux-2.6.8-gentoo-r3 SUBDIRS=$PWD modules
>     where linux-2.6.8-gentoo-r3 is your 2.6 kernel name
> 3.$insmod rt2500.ko
> 4.$ifconfig ra0 up
> 5.$iwconfig ra0 essid any
> 6.$dhcpcd ra0&
> 7.$dhcpcd ra0
>
> Now it should be functional - type
> $iwconfig
> to confirm setting
>
> C.Activate it on startup with a script.
> 1.Input your script file 'wlancfg' in /etc/init.d/
> 2.Start applicaiton YaST in System, choose system -> runlevel editor
> 3.In expert mode, enable 'wlancfg' in runlevel 5.
>
>

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