OK6410 arm+linux 开发板移植rt3070驱动笔记

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1、硬件平台：OK6410arm开发板操作系统：Linux3.0.1WIFI：   RT3070USBWIFI模组交叉编译环境：arm-linux-gcc-4.3.2linux内核编译设置不做讲解1.1：linux内核预配置makemenuconfig将Ralinkdriversupport设置为M，支持动态加载，把Ranlink相关的设置空，以免冲突将wirelessextensionssysfsfiles选上1.2重新编译内核make生成zImage 2.1：网上下载雷凌最新的USB驱动，2011_0719_RT3070_RT3370_RT5370_RT5372_Linux_STA_V2.5.

2、0.3_DPO.bz2拷备到Linux目录并解压：tar jxf 2011_0719_RT3070_RT3370_RT5370_RT5372_Linux_STA_V2.5.0.3_DPO.bz2由于上面名字很长，可以修改为简短的名字：mv  2011_0719_RT3070_RT3370_RT5370_RT5372_Linux_STA_V2.5.0.3_DPO Ralink_RT3070_LinuxSTA_V2.5.0.3第三步：进入RT3070_Linux_STA目录，看到有一个README_STA_usb文件，里面介绍了如何加载该驱动：viMakefileifeq($(CHIPSET),)

3、                                                             CHIPSET=3070                                                                 endif #PLATFORM:Targetplatform                                                     PLATFORM=SMDK ifeq($(PLATFORM),SMDK)                                           

4、             LINUX_SRC=/forlinx/linux-3.0.1                                               CROSS_COMPILE=/usr/local/arm/4.2.2-eabi/usr/bin/arm-linux-                   endif芯片型号要选择对应的CHIPSET=3070，PLATFORM=SMDK选择什么不重要，关键是对应后面的ifeq($(PLATFORM),SMDK)    里面的linux内核的路径和交叉编译环境要填正确第四步：按照第三步README_STA_usb给出的

5、提示，修改config.mk文件，这里也只给出修改部分：#vios/linux/config.mk #SupportWpa_Supplicant                                                       HAS_WPA_SUPPLICANT=y                                                                                                                                                         

6、                                          #SupportNativeWpaSupplicantforNetworkMaganger                            HAS_NATIVE_WPA_SUPPLICANT_SUPPORT=y  2.2  编译源码make通过,在2011_0107_RT3070_RT3370_Linux_STA_v2.5.0.1_DPO/os/linux目录下生成了rt3070sta.ko,也就是RT3070的驱动了3.1  拷贝驱动到目标系统把RT2870STA.dat拷贝到/etc/Wireless

7、/RT2870STA目录下把rt3070sta.ko拷贝到/xxx/目录下xxx自定注意，如果重新编译过linux内核，zImage文件也要更换，rt3070sta.ko与zImage版本要一致4.加载驱动模块insmod/xxx/rt3070sta.ko出现以下错误rt3070sta:Unknownsymbolusb_alloc_urbrt3070sta:Unknownsymbolusb_fre