Realtek 8723bu (USB interface)

陸續補完...
環境：imx6q_sabresd + Android 4.4 + kernel 3.0.35

device/fsl/imx6/sabresd_6dq.mk

PRODUCT_COPY_FILES += \
    frameworks/native/data/etc/android.hardware.wifi.xml:system/etc/permissions/android.hardware.wifi.xml \
    frameworks/native/data/etc/android.hardware.wifi.direct.xml:system/etc/permissions/android.hardware.wifi.direct.xml
PRODUCT_PROPERTY_OVERRIDES += \
    wifi.interface=wlan0

device/fsl/sabresd_6dq/init.rc (注意位置，要在on fs區)

on fs
#mount ext4 partitions
    mount_all /fstab.freescale

service rtw_suppl_con /system/bin/wpa_supplicant \
    -ip2p0 -Dnl80211 -c/data/misc/wifi/p2p_supplicant.conf \
    -e/data/misc/wifi/entropy.bin -N \
    -iwlan0 -Dnl80211 -c/data/misc/wifi/wpa_supplicant.conf \
    -O/data/misc/wifi/sockets \
    -g@android:wpa_wlan0
    class main
    socket wpa_wlan0 dgram 660 wifi wifi
    disabled
    oneshot
    service rtw_suppl /system/bin/wpa_supplicant \
    -iwlan0 -Dnl80211 -c/data/misc/wifi/wpa_supplicant.conf \
    -O/data/misc/wifi/sockets \
    -e/data/misc/wifi/entropy.bin
    -g@android:wpa_wlan0
    class main
    socket wpa_wlan0 dgram 660 wifi wifi
    disabled
    oneshot
service dhcpcd_wlan0 /system/bin/dhcpcd -aABDKL
    class main
    disabled
    oneshot
service dhcpcd_p2p /system/bin/dhcpcd -aABKL
    class main
    disabled
    oneshot
service iprenew_wlan0 /system/bin/dhcpcd -n
    class main
    disabled
    oneshot
service iprenew_p2p /system/bin/dhcpcd -n
    class main
    disabled
    oneshot

device/fsl/sabresd_6dq/BoardConfig.mk

BOARD_WIFI_VENDOR := realtek
ifeq ($(BOARD_WIFI_VENDOR), realtek)
WPA_SUPPLICANT_VERSION := VER_0_8_X
BOARD_WPA_SUPPLICANT_DRIVER := NL80211
CONFIG_DRIVER_WEXT :=y
BOARD_WPA_SUPPLICANT_PRIVATE_LIB := lib_driver_cmd_rtl
BOARD_HOSTAPD_DRIVER := NL80211
BOARD_HOSTAPD_PRIVATE_LIB := lib_driver_cmd_rtl
BOARD_WLAN_DEVICE := rtl8723bu
WIFI_DRIVER_MODULE_NAME := "8723bu"
WIFI_DRIVER_MODULE_PATH := "/system/lib/modules/8723bu.ko"
WIFI_DRIVER_MODULE_ARG := "ifname=wlan0 if2name=p2p0"
WIFI_FIRMWARE_LOADER := ""
WIFI_DRIVER_FW_PATH_STA := ""
WIFI_DRIVER_FW_PATH_AP := ""
WIFI_DRIVER_FW_PATH_P2P := ""
WIFI_DRIVER_FW_PATH_PARAM := ""
TARGET_KERNEL_MODULES        := \
                                kernel_imx/drivers/net/wireless/rtl8723bu/8723bu.ko:system/lib/modules/8723bu.ko \
                                kernel_imx/net/wireless/cfg80211.ko:system/lib/modules/cfg80211_realtek.ko \
                                kernel_imx/net/wireless/cfg80211.ko:system/lib/modules/cfg80211.ko
else
# UNITE is a virtual device support both atheros and realtek wifi(ar6103 and rtl8723as)
BOARD_WLAN_DEVICE            := UNITE
WPA_SUPPLICANT_VERSION       := VER_0_8_UNITE
TARGET_KERNEL_MODULES        := \
                                kernel_imx/drivers/net/wireless/rtl8723as/8723as.ko:system/lib/modules/8723as.ko \
                                kernel_imx/net/wireless/cfg80211.ko:system/lib/modules/cfg80211_realtek.ko
BOARD_WPA_SUPPLICANT_DRIVER  := NL80211
BOARD_HOSTAPD_DRIVER         := NL80211
endif

hardware/libhardware_legacy/wifi/Android.mk

ifeq ($(BOARD_WIFI_VENDOR), realtek)
  LOCAL_SRC_FILES += ../realtek/wlan/libhardware_legacy/wifi/wifi_realtek.c
else ifeq ($(BOARD_WLAN_DEVICE),UNITE)
  LOCAL_C_INCLUDES += $(LOCAL_PATH)/../../external/wpa_supplicant_ath/wpa_supplicant/src/common
  LOCAL_SRC_FILES += wifi/wifi_unite.c
else ifeq ($(BOARD_WLAN_VENDOR), INTEL)
  LOCAL_SRC_FILES += wifi/wifi_intel.c
  LOCAL_C_INCLUDES += $(LOCAL_PATH)/../../external/wpa_supplicant_8/src/common
else
  LOCAL_SRC_FILES += wifi/wifi.c
  LOCAL_C_INCLUDES += $(LOCAL_PATH)/../../external/wpa_supplicant_8/src/common
endif