android Wlan problem
#1
hello,

i have two dongle with ralink chipset, but dont's works with the last android tv !
it's possible to add drivers please ?

thanks for your help
  Reply
#2
I actually found one that works out of the box with an Android 7.1.2 TV and regular Android 7.1.2 install, EMMC Flash and Sd install.

Just plug it in and it works.

https://www.amazon.com/gp/product/B008IF...=UTF8&th=1
  Reply
#3
(10-18-2017, 07:51 AM)Guy the IT Guy Wrote: I actually found one that works out of the box with an Android 7.1.2 TV and regular Android 7.1.2 install, EMMC Flash and Sd install.

Just plug it in and it works.

https://www.amazon.com/gp/product/B008IF...=UTF8&th=1

thanks,
but the links dont's works  Tongue
  Reply
#4
Hello, 
I am very disappointed with your article  Angry , I offer to buy a raspery and less problem ....
please is it possible to have a list of compatible wlan?????  Huh Huh Huh Huh
because I have tested many dongle with diffrents chispset and none works

thanks
  Reply
#5
https://www.pine64.org/?product=usb-wifi...for-rock64

This one works.
  Reply
#6
Hello I have similar problems with my wifi dongle. 

Wifi Dongle:
Edimax EW-7811Un
Realtek RTL8188CUS
Bus 005 Device 002: ID 7392:7811

Sadly I was not able to find an sutable driver for the dongle but the EDIMAX homepage gives a hind to build one. Since i'm quit a noob regarding android and drivers in general here I need a lot of help.

Within the linux driver I found a "readme" with adive how to setup the driver for android but I'm not sure about the architecture of the system. So please could some one gives me an step by step tutorial how to come closer to this WiFi issue?

With kind regards
ED
Code:
================================================================================
Realtek Wi-Fi SDK for Android
Version 2.1
================================================================================
    This document provides a simple guide to help engineers to apply Realtek
Wi-Fi solution onto their Android system. For now, we have supported the
following Wi-Fi functionality on Android up to 2.3:
    1. Standard STA mode
    2. Portable Wi-Fi Hotspot(SoftAP mode)
    
    To port Realtek Wi-Fi driver onto Android platform, you can go through the
following guide with reference codes within our driver package's
realtek_wifi_SDK_for_android_20120618.tar.gz.


    Because Android's SDK may differ from platform to platform, our reference
codes may not be applied on every platform without modifications. You should
check if our reference code is suitable for you to use.

================================================================================
1. Platform Related Files [MUST]
================================================================================
a. BOARD_USES_REALTEK_WIFI := true
    Ensure "BOARD_USES_REALTEK_WIFI := true" is defined in BoardConfig.mk. This
    is for some compile-time choices to be applied for our Wi-Fi solution.

b. BOARD_WPA_SUPPLICANT_DRIVER := WEXT
    Our driver implements the wireless extension interface for communication
    with user space programs. For wpa_supplicant, it's needed to set
    "BOARD_WPA_SUPPLICANT_DRIVER := WEXT" in BoardConfig.mk to make
    wpa_supplicant use the interface implemented in driver_wext.c to communicate
    with our driver.

c. WPA_SUPPLICANT_VERSION := VER_0_6_X
    Android provides both wpa_supplicant and wpa_supplicant_6 inside. We suggest
    using wpa_supplicant_6. You can set "WPA_SUPPLICANT_VERSION := VER_0_6_X" in
    the BoardConfig.mk to use wpa_supplicant_6 for your platform.
    
d. Service definitions
    Make sure the service definitions of wpa_supplicant, dhcpd, hostapd is
    defined in init.rc or init.xxx.rc for your platform. As following:

service wpa_supplicant /system/bin/wpa_supplicant -Dwext -iwlan0 -c/data/misc/wifi/wpa_supplicant.conf
    disabled
    oneshot

service hostapd /system/bin/hostapd_wps /data/misc/wifi/hostapd.conf
    disabled
    oneshot

service dhcpcd /system/bin/dhcpcd -ABKL
    disabled
    oneshot

    ¡° The hostapd service is for Porttable Wi-Fi Hotspot. If you don't want to
    use Porttable Wi-Fi Hotspot for your platfrom, you can ignore it.

================================================================================
2. libwpa_client [MUST]
================================================================================
    The libwpa_client library is linked into libhardware_legacy library for
Wi-Fi to communicate with wpa_supplicant. Instead of using the original
libwpa_client of wpa_supplicant or wpa_supplicant_6, we use the libwpa_client of
hostapd-0.6.9_rtl from us to provide extension functionalities for our Wi-Fi
solutions. To apply this:

a. Copy necessary files
    Copy our hostapd-0.6.9_rtl/ folder into external/ folder of your platform.

b. Prevent the original libwpa_client to be compiled
    Modify the external/wpa_supplicant/Android.mk and
    external/wpa_supplicant_6/Android.mk to prevent the libwpa_client to be
    compiled from wpa_supplicant and wpa_supplicant_6. For example:

ifneq ($(BOARD_USES_REALTEK_WIFI),true)
include $(CLEAR_VARS)
LOCAL_MODULE = libwpa_client
LOCAL_CFLAGS = $(L_CFLAGS)
LOCAL_SRC_FILES = wpa_ctrl.c os_unix.c
LOCAL_C_INCLUDES = $(INCLUDES)
LOCAL_SHARED_LIBRARIES := libcutils
LOCAL_COPY_HEADERS_TO := libwpa_client
LOCAL_COPY_HEADERS := wpa_ctrl.h
include $(BUILD_SHARED_LIBRARY)
endif
    
Reference files:
    external/hostapd-0.6.9_rtl/*
    external/wpa_supplicant/Android.mk
    external/wpa_supplicant_6/Android.mk

================================================================================
3. libhardware_legacy [MUST]
================================================================================
    The libhardware_legacy library includes functionality for Wi-Fi to operate.
We have made modifications and extensions for our Wi-Fi solution. To apply this:

a. Copy necessary files
    Copy our wifi_realtek.c into hardware/libhardware_legacy/wifi folder of your
    platform.

b. Include wifi_realtek.c into source files
    Modify hardware/libhardware_legacy/wifi/Android.mk to include wifi_realtek.c
    instead of wifi.c into LOCAL_SRC_FILES. For example:
    
ifeq ($(BOARD_USES_REALTEK_WIFI),true)
    LOCAL_SRC_FILES += wifi/wifi_realtek.c
else
    LOCAL_SRC_FILES += wifi/wifi.c
endif
    
Reference files:
    hardware/libhardware_legacy/wifi/Android.mk
    hardware/libhardware_legacy/wifi/wifi_realtek.c
    
================================================================================
4. dhcpcd [SUGGEST]
================================================================================
    We have made some modifications for dhcpcd. To apply this:
    
a. Copy necessary files
    Copy our client_realtek.c and logger_realtek.c into external/dhcpcd folder of
    your platform.
    
b. Include logger_realtek.c and client_realtek.c into source files
    Modify external/dhcpcd/Android.mk to include logger_realtek.c and
    client_realtek.c instead of logger.c and client.c into LOCAL_SRC_FILES. For
    example:

ifeq ($(BOARD_USES_REALTEK_WIFI),true)
LOCAL_SRC_FILES += logger_realtek.c client_realtek.c
else
LOCAL_SRC_FILES += logger.c client.c
endif

c. Include libhardware_legacy into shared libraries
    Modify external/dhcpcd/Android.mk to include libhardware_legacy into
    LOCAL_SHARED_LIBRARIES. For example:
    
ifeq ($(BOARD_USES_REALTEK_WIFI),true)
LOCAL_SHARED_LIBRARIES += libhardware_legacy
endif
    
Reference files:
    external/dhcpcd/Android.mk
    external/dhcpcd/client_realtek.c
    external/dhcpcd/logger_realtek.c
    
================================================================================
5. wpa_supplicant
================================================================================
a. Version of wpa_supplicant
    We suggest using wpa_supplicant_6 of Android. See 1.c. for reference.

b. Prevent the original libwpa_client to be compiled
    Because we use libwpa_client from hostapd-0.6.9_rtl. We should prevent the
    original libwpa_client of wpa_supplicant and wpa_supplicant_6 to be compiled.
    See '2. libwpa_client' for reference.
    
c. wpa_supplicant.conf
    Following is the reference content of wpa_supplicant.conf:
    
ctrl_interface=DIR=/data/misc/wifi/wpa_supplicant GROUP=wifi
update_config=1
ap_scan=1

Reference files:
    external/wpa_supplicant/Android.mk

================================================================================
6. netd [MUST for Portable Wi-Fi hotspot]
================================================================================
    The Portable Wi-Fi hotspot functionality is controlled by the
SoftapController subfunction of netd. We provide our own SoftapController
implementation to run our hostapd daemon for softap mode. To apply this:

a. Copy necessary files
    Copy our SoftapController_realtek.cpp into system/netd/ folder of your
    platform.
    
b. Include SoftapController_realtek.cpp into source files
    Modify system/netd/Android.mk to include SoftapController_realtek.cpp
    instead of SoftapController.cpp into LOCAL_SRC_FILES. For example:

ifeq ($(BOARD_USES_REALTEK_WIFI), true)
   LOCAL_SRC_FILES += SoftapController_realtek.cpp
else
   LOCAL_SRC_FILES += SoftapController.cpp
endif

c. Include libhardware_legacy into shared libraries
    Modify system/netd/Android.mk to include libhardware_legacy into
    LOCAL_SHARED_LIBRARIES. For example:

ifeq ($(BOARD_USES_REALTEK_WIFI), true)
   LOCAL_SHARED_LIBRARIES += libhardware_legacy
endif

Reference files:
    system/netd/Android.mk
    system/netd/SoftapController_realtek.cpp

================================================================================
7. Opening Portable Wi-Fi Hotspot UI
================================================================================
    We should set interface item to the following two resource configurations of
your platform to show the UI for Portable Wi-Fi Hotspot.

a. config_tether_wifi_regexs
    The interfaces set here is used as the interfaces for Wi-Fi LAN port. We use
    'wlap0' by default when our wifi is set as softap mode. So it needs to set
    'wlap0' here for system to recognized 'wlap0' as Wi-Fi LAN port.
    For example:
    
<string-array translatable="false" name="config_tether_wifi_regexs">
        <item>"wlap0"</item>
</string-array>
    
b. config_tether_upstream_regexs
    The interfaces set here are used as the interfaces for WAN port to connect
    to internet. Usually, 'ppp0' used by 3G, 'eth0' used by ethernet, 'wlan0'
    used by Wi-Fi can be set here. For example:

<string-array translatable="false" name="config_tether_upstream_regexs">
        <item>"ppp\\d"</item>
        <item>"eth\\d"</item>
        <item>"wlan\\d"</item>
</string-array>
    
    Android will apply DHCP server function for Wi-Fi LAN port, and setup NAT
between Wi-Fi LAN port and WAN port automatically.
    
Reference files:
    frameworks/base/core/res/res/values/config.xml

================================================================================
8. Patch for WifiSettings.java
================================================================================
    The WifiSettings UI page has bug which doesn't get lastest WiFi information.
We provide patch to fix this problem. Add the following 4 line at the beginning
of function updateAccessPoints():

       mLastInfo = mWifiManager.getConnectionInfo();
       mLastState = WifiInfo.getDetailedStateOf(mLastInfo.getSupplicantState());
       if(mLastState == DetailedState.OBTAINING_IPADDR && mLastInfo.getIpAddress() != 0)
           mLastState = DetailedState.CONNECTED;

Reference files:
    packages\apps\Settings\src\com\android\settings\wifi\WifiSettings.java

================================================================================
9. Driver Configuration and Compilation
================================================================================
a. MODULE_NAME defined in Makefile
    For android to rmmod the wifi driver module, the driver module name, which
    is decided in compilation time as MODULE_NAME defined in Makefile, should be
    the same as WIFI_DRIVER_MODULE_NAME defined in wifi_realtek.c:
        
#define WIFI_DRIVER_MODULE_NAME     "wlan"

b. Driver Compilation
    For driver compilation, please refer to:
        doument/Quick_Start_Guide_for_Driver_Compilation_and_Installation.pdf
    
c. Where to place wifi driver module
    If you compile wifi driver as .ko file, you should place wifi driver module
    to the path defined in wifi_realtek.c with WIFI_DRIVER_MODULE_PATH macro.
    The default path defined in wifi_realtek.c:

#define WIFI_DRIVER_MODULE_PATH    "/system/wifi/wlan.ko"
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