Guide on adding WIFI drivers on Android.

I struggled couple of days to run successfully WIFI driver on Android Froyo version, Below are the Steps which includes porting of Wifi Drivers to Android:-


Step1:-Modified  "wpa_supplicant.conf " ,ctrl_interface modification is important here..,This file actually will be loaded to device @ path /etc/wifi/


##### wpa_supplicant configuration file template #####
update_config=1
ctrl_interface=DIR=/data/misc/wifi GROUP=wifi
eapol_version=1
ap_scan=1
fast_reauth=1

Step2:-Modification of  file BoardConfig.mk ,Modify Module path and FW path depending on the requirement.BOARD_WPA_SUPPLICANT_DRIVER should be WEXT..,if its custom change it.


BOARD_WPA_SUPPLICANT_DRIVER := WEXT
WPA_SUPPLICANT_VERSION      := VER_0_6_X
#BOARD_WLAN_DEVICE           := bcm4329
WIFI_DRIVER_MODULE_PATH     := "/system/lib/modules/bcm4329.ko"
WIFI_DRIVER_FW_STA_PATH     := "/system/vendor/firmware/fw_bcm4329.bin"
WIFI_DRIVER_FW_AP_PATH      := "/system/vendor/firmware/fw_bcm4329_apsta.bin"
WIFI_DRIVER_MODULE_ARG      := "firmware_path=/system/vendor/firmware/fw_bcm4329.bin nvram_path=/system/etc/nvram.txt"
WIFI_DRIVER_MODULE_NAME     := "bcm4329"

Step3:-Modification of system.prop file

wifi.interface=eth0

Step4:-Modifiication of init.rc file

 mkdir /data/misc/wifi 0770 wifi wifi

    chmod 0770 /data/misc/wifi

    mkdir /data/misc/wifi/sockets 0770 wifi wifi

    mkdir /data/misc/dhcp 0770 dhcp dhcp

    mkdir /data/wifi 0770 wifi wifi

    chmod 0660 /data/misc/wifi/wpa_supplicant.conf

setprop wifi.interface "eth0"

    setprop wlan.driver.status "ok" 

    setprop wlan.interface "eth0"

service wpa_supplicant /system/bin/logwrapper /system/bin/wpa_supplicant -Dwext -ieth0 -c/system/etc/wifi/wpa_supplicant.conf -dd 

   disabled

   oneshot

group system 

service dhcpcd /system/bin/logwrapper /system/bin/dhcpcd -d eth0

   disabled

   oneshot