wifi binding on imx6sl evk based board

[zoranl]

We are having problem with board that is based on imx6sl evk and rtl8192cu (chip on wifi module is RTL8188CTV). The wifi module is on USB interface.
We integrated rtl8192cu driver from another package, we used manual supplied by realtek to integrate there driver into android (from zip file RTL8188C_8192C_USB_linux_v4.0.2_9000.20130911.zip pdf file \android_ref_codes_JB_4.2\Realtek_Wi-Fi_SDK_for_Android_JB_4_2.pdf).

The driver is build as part of the kernel, not module. We used there's wpa_supplicant, that came with realteks package (wpa_supplicant_8_jb_4.2_rtw_r8680.20130821.tar.gz).

Package is from this site: http://www.realtek.com/downloads/downloadsView.aspx?Langid=2&PFid=48&Level=5&Conn=4&ProdID=277&DownT...

RTL8192CU for Linux/Android

Firmware is from this link: rtl819x - Linux Wireless

Using serial interface terminal, we tested the wlan0 interface,  we can bring it up, and get ip number:

root@evk_6sl:/ # cat /sys/kernel/debug/usb/devices

T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=480  MxCh= 0

D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1

P:  Vendor=0bda ProdID=8176 Rev= 2.00

S:  Manufacturer=Realtek

S:  Product=802.11n WLAN Adapter

S:  SerialNumber=00e04c000001

C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=500mA

I:* If#= 0 Alt= 0 #EPs= 4 Cls=ff(vend.) Sub=ff Prot=ff Driver=rtl8192cu

E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms

E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

E:  Ad=84(I) Atr=03(Int.) MxPS=  64 Ivl=125us

root@evk_6sl:/ # dhcpcd wlan0

dhcpcd[2859]: version 5.5.6 start+871x_drv - drv_open, bup=0

===> FirmwareDownload91C() fw:Rtl819XFwImageArray_UMC_B

FirmwareDownload92C accquire FW from embedded image

fw_ver=v80, fw_subver=0, sig=0x88c0

fw download ok!

Set RF Chip ID to RF_6052 and RF type to 1T1R.

IQK:Start!!!

Path A IQK Success!!

Path A IQK Success!!

IQK: final_candidate is 0

IQK: RegE94=103 RegE9C=f RegEA4=fb RegEAC=5 RegEB4=0 RegEBC=0 RegEC4=0 RegECC=0

Path A IQ Calibration Success !

pdmpriv->TxPowerTrackControl = 1

MAC Address from REG_MACID = 44:33:4c:8b:f2:10

rtl8192cu_hal_init in 610ms

MAC Address = 44:33:4c:8b:f2:10

-871x_drv - drv_open, bup=1

ADDRCONF(NETDEV_UP): wlan0: link is not ready

dhcpcd[2859]: wlan0: checking for 169.254.169.141

dhcpcd[2859]: wlan0: using IPv4LL address 169.254.169.141

dhcpcd[2859]: forked to background, child pid 2885

root@evk_6sl:/ # ifconfig wlan0

wlan0: ip 169.254.169.141 mask 255.255.0.0 flags [up broadcast running multicast]

root@evk_6sl:/ # netcfg

lo       UP                                   127.0.0.1/8   0x00000049 00:00:00:00:00:00

eth0     UP                               192.168.0.152/24  0x00001043 24:80:00:00:00:00

tunl0    DOWN                                   0.0.0.0/0   0x00000080 00:00:00:00:00:00

sit0     DOWN                                   0.0.0.0/0   0x00000080 00:00:00:00:00:00

ip6tnl0  DOWN                                   0.0.0.0/0   0x00000080 00:00:00:00:00:00

wlan0    UP                             169.254.169.141/16  0x00001043 44:33:4c:8b:f2:10

We need to use dhcpcd wlan0 command, the suggested init.rs service doesn't work, but thats not the problem.

Our problem is that binding from android ui and kernel isnt working.

When we tried to turn on wifi, from Settings>Wifi in Android UI, the slider button can move and change to On state, but the message on display "To see available networks, turn WiFi on" is still there.

in logcat we get:

D/WifiService( 2363): setWifiEnabled: true pid=2363, uid=1000

After that we can't move slider back.

When we exit that menu and return, the slider is back in Off state.

Using wifi from shell, we can get all the other wifi networks:

root@evk_6sl:/data # ./xbin/iwlist wlan0 scanning

survey done event(18)

wlan0     Scan completed :

         Cell 01 - Address: BC:AE:C5:C4:3B:F7

                   ESSID:"Automatic"

                   Protocol:IEEE 802.11bg

                   Mode:Master

                   Frequency:2.412 GHz (Channel 1)

                   Encryption key:on

                   Bit Rates:54 Mb/s

                   Quality=59/100  Signal level=-95 dBm

         Cell 02 - Address: 68:7F:74:01:C6:BE

                   ESSID:""

                   Protocol:IEEE 802.11bg

                   Mode:Master

                   Frequency:2.432 GHz (Channel 5)

                   Encryption key:off

                   Bit Rates:54 Mb/s

                   Quality=100/100  Signal level=-55 dBm

         Cell 03 - Address: 20:AA:4B:1B:A1:7C

                   ESSID:"TEST"

                   Protocol:IEEE 802.11bgn

                   Mode:Master

                   Frequency:2.437 GHz (Channel 6)

                   Encryption key:off

                   Bit Rates:144 Mb/s

                   IE: Unknown: DD750050F204104A0001101044000102103B0001031047001020AA4B1BA17A20AA4B1BA17A022AC107102100104C696E6B73797320627920436973636F102300085752543136304E4C1024000776312E302E303210420001351054000800060050F2040001101100085752543136304E4C100800020084

                   Quality=100/100  Signal level=-71 dBm

         Cell 04 - Address: 00:1D:7E:BD:10:05

                   ESSID:"alt02"

                   Protocol:IEEE 802.11bg

                   Mode:Master

                   Frequency:2.457 GHz (Channel 10)

                   Encryption key:on

                   Bit Rates:54 Mb/s

                   Extra:wpa_ie=dd180050f20101000050f20201000050f20201000050f2020c00

                   IE: WPA Version 1

                       Group Cipher : TKIP

                       Pairwise Ciphers (1) : TKIP

                       Authentication Suites (1) : PSK

                   Quality=100/100  Signal level=-74 dBm

         Cell 05 - Address: 00:18:F8:3B:F1:0A

                   ESSID:"alt1"

                   Protocol:IEEE 802.11bg

                   Mode:Master

                   Frequency:2.462 GHz (Channel 11)

                   Encryption key:on

                   Bit Rates:54 Mb/s

                   Quality=101/100  Signal level=-95 dBm

We also added permissions for wifi in android ..

Please, ask me if you need more details, I kept track of all the changed done in the android and kernel.

Logcat with DBG for classes in wifi is also available.

Does anyone have any idea about this problem? Could you help us, please? We wasted a lot of time on this.

[ranganathtm]

Hi Zoran,

Thanks for reply,

I am running wpa_supplicant in init.freescale.rc and at boot time I am getting below error :

D/NetworkManagementService( 2501): enabling bandwidth control

I/wpa_supplicant( 2591): Successfully initialized wpa_supplicant

I/wpa_supplicant( 2591): rfkill: Cannot open RFKILL control device

E/wpa_supplicant( 2591): nl80211: Could not configure driver to use managed mode

E/wpa_supplicant( 2591): Could not read interface p2p0 flags: No such device

E/wpa_supplicant( 2591): p2p0: Failed to initialize driver interface

E/WifiStateMachine( 2501): Failed to start supplicant!

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=131144

D/WifiStateMachine( 2501): processMsg: InitialState

D/WifiStateMachine( 2501): processMsg: DefaultState

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=131085

D/WifiStateMachine( 2501): processMsg: InitialState

D/WifiStateMachine( 2501): processMsg: DefaultState

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=131149

D/WifiStateMachine( 2501): processMsg: InitialState

D/WifiStateMachine( 2501): processMsg: DefaultState

D/WifiStateMachine( 2501): setSuspendOptimizations: 2 true

D/WifiStateMachine( 2501): mSuspendOptNeedsDisabled 0

D/WifiStateMachine( 2501): handleMessage: X

Note : When I run ps | grep wpa : result is nothing and wpa_supplicant is not running.

But it works fine for me from command line

Thanks And Regards,

Ranganath TM

[zoranl]

Are the service name and the name in the interface file same?

vim hardware/realtek/wlan/libhardware_legacy/wifi/wifi_realtek.c

static const char SUPPLICANT_NAME[]     = "rtw_suppl"; /* without p2p concurrent */

and

in init.rc or init.xxxxx.rc script

service rtw_suppl /system/bin/wpa_supplicant -dd -iwlan0 -Dnl80211 \

    -c/data/misc/wifi/wpa_supplicant.conf

    socket wpa_wlan0 dgram 660 wifi wifi

    class main

    disabled

    oneshot

You could add ALOGE to wifi_start_supplicant function, to get more debug data.

p2p is another service and interface.

Are the modules loaded ok, after booting?

Is the insert mod in the right place (you have on early-init, on boot, on fs), so maybe to make it as part of kernel, not modules, for start, to eliminate that.

BR,

Zoran

[ranganathtm]

Hi Zoran,

Thanks for reply,

1) Yes services names are same inside init.freescale.rc and wifi_realtek.c, kindly find below :

static const char P2P_SUPPLICANT_NAME_REALTEK[] = "rtw_suppl_con"; /* p2p concurrent */

service rtw_suppl_con /system/bin/rtl_wpa_supplicant \

    -iwlan0 -Dnl80211 -c/data/misc/wifi/wpa_supplicant.conf

    class late_start

    socket wpa_wlan0 dgram 660 wifi wifi

    disabled

    oneshot

2) I added logs inside function wifi_start_supplicant function and it pass below condition which give confidence supplicant is running,

if (pi != NULL) {

            __system_property_read(pi, NULL, supp_status);

            if (strcmp(supp_status, "running") == 0) {

                ALOGE("TMR supplicant running success");

                return 0;

            }

3) Yes the modules are loading after boot in init.rc. Below is the result of lsmod,

rtl8192cu 91079 0 - Live 0x00000000

rtl8192c_common 54246 1 rtl8192cu, Live 0x00000000

rtlwifi 88904 1 rtl8192cu, Live 0x00000000

mac80211 164669 3 rtl8192cu,rtl8192c_common,rtlwifi, Live 0x00000000

cfg80211 149736 2 rtlwifi,mac80211, Live 0x00000000

4)But it fails in wifi_connect_on_socket_path function inside condition

ctrl_conn[index] = wpa_ctrl_open(path1);

    if (ctrl_conn[index] == NULL) {

        ALOGE("TMR wifi_connect_on_socket_path inside if");

        ALOGE("Unable to open connection to supplicant on \"%s\": %s",

                path, strerror(errno));

        return -1;

    }    

By throwing error E/WifiHW  ( 2514): Unable to open connection to supplicant on "/data/system/wpa_supplicant/wlan0": Connection refused.

please help me to resolve issue.

Thanks In Advance,

Ranganath TM

[zoranl]

This is P2P supplicant.

static const char P2P_SUPPLICANT_NAME_REALTEK[] = "rtw_suppl_con"; /* p2p concurrent */

or

static const char SUPPLICANT_NAME[] = "rtw_suppl"; /* without p2p concurrent */

Do you have rtw_suppl running on system?

I only have primary interface, not p2p (we dont need it)

root@shd_6sl:/ # ps | grep supp

wifi      2915  1     3108   1856  c00fdb8c 40191448 S /system/bin/wpa_supplicant

root@shd_6sl:/ # getprop |grep suppl

[init.svc.rtw_suppl]: [running]

Do you have this file in android fs:

/data/system/wpa_supplicant/wlan0 ?

I dont think this is correct path.

What is your wpa conf file, after you start wifi?

Mine is:

root@shd_6sl:/ # cat /data/misc/wifi/wpa_supplicant.conf

update_config=1

ctrl_interface=wlan0

eapol_version=1

ap_scan=1

fast_reauth=1

/* PRIMARY refers to the connection on the primary interface                             

* SECONDARY refers to an optional connection on a p2p interface */

Did you made modification so that jni (android_net_wifi_Wifi.cpp)  can interface this driver?

vim frameworks/base/core/jni/android_net_wifi_Wifi.cpp

static jboolean android_net_wifi_killSupplicant(JNIEnv* env, jobject, jboolean p2pSupported)

{                        

  return (jboolean)(::wifi_stop_supplicant(p2pSupported) == 0);

}

In 4.3 wifi_stop_supplicant function has argument:

int wifi_stop_supplicant(int p2p_supported);

also we have to add this (and some debug log):

vim hardware/realtek/wlan/libhardware_legacy/wifi/wifi_realtek.c

int wifi_stop_supplicant(int p2p_supported) {

.......

    if (p2p_supported) {

        property_get("wifi.supplicant", supplicant_name, P2P_SUPPLICANT_NAME);

        snprintf(supplicant_prop_name, PROPERTY_KEY_MAX, P2P_PROP_NAME, supplicant_name);

          ALOGE("p2p_supported wifi.supplicant=%s\n",supplicant_name);

    } else {

        property_get("wifi.supplicant", supplicant_name, SUPPLICANT_NAME);

        snprintf(supplicant_prop_name, PROPERTY_KEY_MAX, SUPP_PROP_NAME, supplicant_name);

          ALOGE("wifi.supplicant=%s\n",supplicant_name);

    }

If you do not use modules for rtl wifi, remember to add return 0; in wifi_realtek.c functions:

insmod,rmmod,load_driver,wifi_load_driver,unload_driver,wifi_unload_driver.

BR,

Zoran

[ranganathtm]

Hi Zoran,

sorry for late reply,

when I run below command I am getting Permission denied issue where to change permission,

root@sabresd_6dq:/data/system # wpa_supplicant -Dnl80211 -iwlan0 -c/data/misc/wifi/wpa_supplicant.conf -dd -B

rtl8192cu: MAC auto ON okay!

rtl8192cu: Tx queue select: 0x05

rtl8192c: Loading firmware file rtlwifi/rtl8192cufw.bin

ADDRCONF(NETDEV_UP): wlan0: link is not ready

mkdir[ctrl_interface]: Permission denied

I tried my mounting /system and /data partition as rw in fstab.freescale

Thanks And Regards,

Ranganath TM

[zoranl]

Hi Ranganath,

In init.rc file, you have to setup correct permission, group and owner:

mkdir /system/etc/wifi 0770 wifi wifi

chmod 0770 /system/etc/wifi

chmod 0660 /system/etc/wifi/wpa_supplicant.conf

chown wifi wifi /system/etc/wifi/wpa_supplicant.conf

#wpa_supplicant control socket for android wifi.c (android private socket)

mkdir /data/misc/wifi 0770 wifi wifi

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

chmod 0770 /data/misc/wifi

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

chown wifi wifi /data/misc/wifi

chown wifi wifi /data/misc/wifi/wpa_supplicant.conf

Check this two folders and files in them:

/system/etc/wifi

and

/data/misc/wifi

BR,

Zoran

[ranganathtm]

Hi Zoran,

I am able to solve permission issue now wpa_supplicant is running in command line, but I fails when I try from settings app  below are logs:

root@sabresd_6dq:/data/system/wpa_supplicant # logcat                         

--------- beginning of /dev/log/system

D/WifiService( 2515): setWifiEnabled: true pid=2835, uid=1000

--------- beginning of /dev/log/main

D/WifiStateMachine( 2515): handleMessage: E msg.what=131083

D/WifiStateMachine( 2515): processMsg: InitialState

E/WifiHW  ( 2515): the ret value form is_wifi_driver_loaded = 1

E/WifiHW  ( 2515): the check condition inside wifi.c wifi_load_driver

E/WifiStateMachine( 2515): trying to start supplicant

D/SoftapController( 2184): Softap fwReload - Ok

D/CommandListener( 2184): Setting iface cfg

D/CommandListener( 2184): Trying to bring down wlan0

E/WifiHW  ( 2515): inside wifi_stop_supplicant = init.svc.wpa_supplicant

D/dalvikvm( 2515): GC_CONCURRENT freed 315K, 44% free 5272K/9408K, paused 3ms+3ms, total 42ms

E/WifiHW  ( 2515): wifi_start_supplicant p2p=0

E/WifiHW  ( 2515): Wi-Fi will ensure config file exist

D/WifiHW  ( 2515): start supplicant cmd=wpa_supplicant

E/WifiHW  ( 2515): TMR after start supplicant checking its status

E/WifiHW  ( 2515): TMR supplicant name = init.svc.wpa_supplicant

I/wpa_supplicant( 3297): Successfully initialized wpa_supplicant

E/WifiHW  ( 2515): TMR after start supplicant checking its status

E/WifiHW  ( 2515): TMR supplicant name = init.svc.wpa_supplicant

E/WifiHW  ( 2515): TMR: supplicant stopped

E/WifiStateMachine( 2515): Failed to start supplicant!

D/WifiStateMachine( 2515): handleMessage: X

D/WifiStateMachine( 2515): handleMessage: E msg.what=131144

D/WifiStateMachine( 2515): processMsg: InitialState

D/WifiStateMachine( 2515): processMsg: DefaultState

D/WifiStateMachine( 2515): handleMessage: X

D/WifiStateMachine( 2515): handleMessage: E msg.what=131085

D/WifiStateMachine( 2515): processMsg: InitialState

D/WifiStateMachine( 2515): processMsg: DefaultState

D/WifiStateMachine( 2515): handleMessage: X

D/WifiStateMachine( 2515): handleMessage: E msg.what=131149

D/WifiStateMachine( 2515): processMsg: InitialState

D/WifiStateMachine( 2515): processMsg: DefaultState

D/WifiStateMachine( 2515): setSuspendOptimizations: 2 true

D/WifiStateMachine( 2515): mSuspendOptNeedsDisabled 0

D/WifiStateMachine( 2515): handleMessage: X

Thanks And Regrads,

Ranganath TM

[zoranl]

Did you restart device, always try to turn wifi on from Settings after reboot.

Could you cat wpa_supplicant.conf file in /system/etc/wifi/ and also in /data/misc/wifi, they seamed to be same size, but a little too big :-) ?

Here are mine:

root@shd_6sl:/ # cat /data/misc/wifi/wpa_supplicant.conf

update_config=1

ctrl_interface=wlan0

eapol_version=1

ap_scan=1

fast_reauth=1

same as in

root@shd_6sl:/ # cat /system/etc/wifi/wpa_supplicant.conf

BR,

Zoran

[ranganathtm]

Hi Zoran,

I did following experiment first I turned on wpa_supplicant in command line and after the I typed svc_wifi_enable, by below experiment I am able to see wifi device list in settings app,

cat system/etc/permissions/platform.xml | grep -i wifi  ---------> I am not able find any thing in my system

Below are my config files:

cat  /data/misc/wifi/wpa_supplicant.conf             

ctrl_interface=DIR=/data/system/wpa_supplicant GROUP=wifi

update_config=1

device_name=sabresd_6dq

manufacturer=Freescale

model_name=SABRESD-MX6DQ

model_number=SABRESD-MX6DQ

serial_number=

device_type=10-0050F204-5

config_methods=physical_display virtual_push_button

p2p_listen_reg_class=81

p2p_listen_channel=11

persistent_reconnect=1

network={

        ssid="XT1068 2883"

        key_mgmt=NONE

        priority=5

}

network={

        ssid="HemanthAP"

        psk="medconnect"

        key_mgmt=WPA-PSK

        priority=6

        disabled=1

}

cat /system/etc/wifi/wpa_supplicant.conf                                                  <

##### wpa_supplicant configuration file template #####

update_config=1

ctrl_interface=DIR=/data/system/wpa_supplicant GROUP=wifi

eapol_version=1

ap_scan=1

fast_reauth=1

config_methods=virtual_push_button physical_display keypad

p2p_listen_channel=11

p2p_listen_reg_class=81

persistent_reconnect=1

root@sabresd_6dq:/ #

Thanks And Regrads,

Ranganath TM

[zoranl]

Hi Ranganath,

So, it works now?

BR,

Zoran

[ranganathtm]

Hi Zoran,

If I start wpa_supplicant and run svc wifi enable form command line its working, but it's not working form setting app.

And I am not able to find any thing in  command line by typing below command,

cat system/etc/permissions/platform.xml | grep -i wifi 

Thanks And Regards,

Ranganath TM

[zoranl]

So, there is a problem with jni or some permissions.

What is in the logcat?

Do you have this:

cat system/etc/permissions/required_hardware.xml | grep wifi

    <feature name="android.hardware.wifi" />

there should be also android.hardware,wifi.direct or something like that. You could try it for now, without wifi.direct.

Edit file

vim ./frameworks/base/data/etc/platform.xml

or directly in android /system/etc/permissions/platform.xml and add those lines

BR,

Zoran

[ranganathtm]

Hi Zoran,

I have android.hardware.wifi.xml which as the <feature name="android.hardware.wifi" /> and I tried by removing android.hardware.wifi.direct.xml, but the result is same the wpa_supplicant is not running. Below are errors:

E/WifiHW  ( 2511): the ret value form is_wifi_driver_loaded = 1

E/WifiStateMachine( 2511): trying to start supplicant

D/SoftapController( 2195): Softap fwReload - Ok

D/CommandListener( 2195): Setting iface cfg

D/CommandListener( 2195): Trying to bring down wlan0

E/WifiHW  ( 2511): wifi_start_supplicant p2p=0

E/WifiHW  ( 2511): Wi-Fi will ensure config file exist

D/WifiHW  ( 2511): start supplicant cmd=wpa_supplicant

E/WifiHW  ( 2511): TMR:supplicant running success, sup_name=wpa_supplicant

D/WifiStateMachine( 2511): setWifiState: enabling

D/WifiStateMachine( 2511): Supplicant start successful

E/WifiHW  ( 2511): TMR:wifi_connect_to_supplicant wlan0

E/WifiHW  ( 2511): Unable to open connection to supplicant on "/data/system/wpa_supplicant/wlan0": No such file or directory

Thanks And Regards,

Ranganath TM

[zoranl]

This means that android is working correctly:-).

As I said, couple messages before, wlan0 isnt in

/data/system/wpa_supplicant

I am not sure that there is even that directory.

In your wpa_supplicant.conf file, you set path to interface directory, but that path doesnt exist, and of course wlan0 file isnt there.

Please try with wpa_supplicant.conf that I've sent you before.

BR,

Zoran

[ranganathtm]

Hi Zoran,

When I execute by copying content of wpa_supplicant.conf as specified by you, I am not able to lunch wpa_supplicant below are errors,

rtl8192cu: MAC auto ON okay!

rtl8192cu: Tx queue select: 0x05

rtl8192c: Loading firmware file rtlwifi/rtl8192cufw.bin

ADDRCONF(NETDEV_UP): wlan0: link is not ready

mkdir[ctrl_interface]: Read-only file system

But if lunch wpa_supplicant in command, after that if I turn on my wiifi from settings app its working for me.

Zoran Kindly let me know where all the wpa-supplicant will stopped in HAL layer and who will the status of update init.svc.wpa_supplicant.

Thanks And Regards,

Ranganath TM 

[zoranl]

This is the problem:

mkdir[ctrl_interface]: Read-only file system

Could you pack this files/folders and send them to me. I will send you my email address in pm.

out/target/product/{yourdevice}/system/etc/wifi/wpa_supplicant.conf

out/target/product/{yourdevice}/root//init.rc

out/target/product/{yourdevice}/root/init.{yourdevice}.rc

out/target/product/{yourboard}/system/etc/permissions

hardware/realtek

hardware/libhardware_legacy

external/wpa_supplicant_8

kernel_imx/arch/arm/configs/imx6s_{yourdevice}_android_defconfig

device/fsl/{yourdevice}/BoardConfig.mk

frameworks/base/wifi/java/android/net/wifi

Please list all relevant folders/files to recheck permissions!

It is irrelevant, it just reports if process is running. Its a way to get info between layers in android.

BR,

Zoran

[ranganathtm]

Hi Zoran,

Thanks For reply,

Now I am able scan all wifi node from setting app and wpa_supplicant is starting successfully, but it fails to connect.

Below are the logs,

E/WifiConfigStore( 2511): Error parsing configurationjava.io.FileNotFoundException: /data/misc/wifi/ipconfig.txt: open failed: ENOENT (No such

file or directory

D/WifiStateMachine( 2501): handleMessage: E msg.what=131131

D/WifiStateMachine( 2501): processMsg: DisconnectedState

D/WifiStateMachine( 2501): processMsg: ConnectModeState

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=151553

D/WifiStateMachine( 2501): processMsg: DisconnectedState

D/WifiStateMachine( 2501): processMsg: ConnectModeState

W/audio_hw_primary( 2178): card 0, port 0 device 0x400

W/audio_hw_primary( 2178): rate 44100, channel 2 period_size 0x300

I/wpa_supplicant( 3054): wlan0: SME: Trying to authenticate with 80:6c:1b:de:9b:67 (SSID='XT1068 2883' freq=2437 MHz)

D/WifiStateMachine( 2501): transitionTo: destState=DisconnectingState

D/WifiStateMachine( 2501): handleMessage: new destination call exit/enter

D/WifiStateMachine( 2501): setupTempStateStackWithStatesToEnter: X mTempStateStackCount=1,curStateInfo: state=ConnectModeState,active=true,pare

nt=DriverStartedState

D/WifiStateMachine( 2501): invokeExitMethods: DisconnectedState

D/WifiStateMachine( 2501): moveTempStackToStateStack: i=0,j=4

D/WifiStateMachine( 2501): moveTempStackToStateStack: X mStateStackTop=4,startingIndex=4,Top=DisconnectingState

D/WifiStateMachine( 2501): invokeEnterMethods: DisconnectingState

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=147462

D/WifiStateMachine( 2501): processMsg: DisconnectingState

D/WifiStateMachine( 2501): deferMessage: msg=147462

D/WifiStateMachine( 2501): Stopping DHCP and clearing IP

D/CommandListener( 2173): Clearing all IP addresses on wlan0

D/WifiStateMachine( 2501): setDetailed state, old =IDLE and new state=DISCONNECTED

D/WifiStateMachine( 2501): transitionTo: destState=DisconnectedState

D/WifiStateMachine( 2501): handleMessage: new destination call exit/enter

D/WifiStateMachine( 2501): setupTempStateStackWithStatesToEnter: X mTempStateStackCount=1,curStateInfo: state=ConnectModeState,active=true,pare

nt=DriverStartedState

D/WifiStateMachine( 2501): invokeExitMethods: DisconnectingState

D/WifiStateMachine( 2501): moveTempStackToStateStack: i=0,j=4

D/WifiStateMachine( 2501): moveTempStackToStateStack: X mStateStackTop=4,startingIndex=4,Top=DisconnectedState

D/WifiStateMachine( 2501): invokeEnterMethods: DisconnectedState

D/WifiStateMachine( 2501): moveDeferredMessageAtFrontOfQueue; what=147462

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=147462

D/WifiStateMachine( 2501): processMsg: DisconnectedState

D/WifiStateMachine( 2501): setDetailed state, old =DISCONNECTED and new state=SCANNING

D/WifiStateMachine( 2501): processMsg: ConnectModeState

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=131131

D/WifiStateMachine( 2501): processMsg: DisconnectedState

D/WifiStateMachine( 2501): processMsg: ConnectModeState

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=147462

D/WifiStateMachine( 2501): processMsg: DisconnectedState

D/WifiStateMachine( 2501): setDetailed state, old =SCANNING and new state=CONNECTING

D/WifiStateMachine( 2501): processMsg: ConnectModeState

D/WifiStateMachine( 2501): handleMessage: X

D/ConnectivityService( 2501): ConnectivityChange for WIFI: DISCONNECTED/DISCONNECTED

D/ConnectivityService( 2501): Attempting to switch to mobile

D/ConnectivityService( 2501): Attempting to switch to BLUETOOTH_TETHER

D/ConnectivityService( 2501): Attempting to switch to ETHERNET

D/Nat464Xlat( 2501): requiresClat: netType=1, hasIPv4Address=false

D/WifiStateMachine( 2501): handleMessage: E msg.what=131131

D/WifiStateMachine( 2501): processMsg: DisconnectedState

D/WifiStateMachine( 2501): processMsg: ConnectModeState

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=147461

D/WifiStateMachine( 2501): processMsg: DisconnectedState

D/WifiStateMachine( 2501): processMsg: ConnectModeState

D/WifiStateMachine( 2501): processMsg: DriverStartedState

D/WifiStateMachine( 2501): processMsg: SupplicantStartedState

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=131131

D/WifiStateMachine( 2501): processMsg: DisconnectedState

D/WifiStateMachine( 2501): processMsg: ConnectModeState

D/WifiStateMachine( 2501):wlan0: authenticate with 80:6c:1b:de:9b:67 (try 1)

handleMessage: X

wlan0: authenticated

wlan0: associate with 80:6c:1b:de:9b:67 (try 1)

I/wpa_supplicant( 3054): wlan0: Trying to associate with 80:6c:1b:de:9b:67 (SSID='XT1068 2883' freq=2437 MHz)

D/WifiStateMachine( 2501): handleMessage: E msg.what=147462

D/WifiStateMachine( 2501): processMsg: DisconnectedStwlan0: RX AssocResp from 80:6c:1b:de:9b:67 (capab=0x8421 status=0 aid=3)

ate

D/WifiStateMachine( 2501): swlan0: associated

etDetailed state, old =CONNECTING and new state=CONNECTING

D/WifiStateMachine( 2501): processMsg: ConnectModeState

D/WifiStateMachine( 2501): handleMessage: X

D/dalvikvm( 2754): GC_CONCURRENT freed 329K, 10% free 3663K/4044K, paused 3ms+5ms, total 26ms

ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready

I/wpa_supplicant( 3054): wlan0: Associated with 80:6c:1b:de:9b:67

I/wpa_supplicant( 3054): wlan0: CTRL-EVENT-CONNECTED - Connection to 80:6c:1b:de:9b:67 completed (auth) [id=0 id_str=]

D/WifiStateMachine( 2501): handleMessage: E msg.what=147462

D/WifiStateMachine( 2501): processMsg: DisconnectedState

D/WifiStateMachine( 2501): setDetailed state, old =CONNECTING and new state=CONNECTING

D/WifiStateMachine( 2501): processMsg: ConnectModeState

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=147459

D/WifiStateMachine( 2501): processMsg: DisconnectedSwlan0: deauthenticating from 80:6c:1b:de:9b:67 by local choice (reason=3)

tate

D/WifiStateMachine( 2501): processMsg: ConnectModeState

D/WifiStateMachine( 2501): Network connection established

D/WifiStateMachine( 2501): setDetailed state, old =CONNECTING and new state=OBTAINING_IPADDR

D/WifiStateMachine( 2501): transitionTo: destState=ObtainingIpState

D/WifiStateMachine( 2501): handleMessage: new destination call exit/enter

D/WifiStateMachine( 2501): setupTempStateStackWithStatesToEnter: X mTempStateStackCount=2,curStateInfo: state=ConnectModeState,active=true,pare

nt=DriverStartedState

D/WifiStateMachine( 2501): invokeExitMethods: DisconnectedState

D/WifiStateMachine( 2501): moveTempStackToStateStack: i=1,j=4

D/WifiStateMachine( 2501): moveTempStackToStateStack: i=0,j=5

D/WifiStateMachine( 2501): moveTempStackToStateStack: X mStateStackTop=5,startingIndex=4,Top=ObtainingIpState

D/WifiStateMachine( 2501): invokeEnterMethods: L2ConnectedState

D/WifiStateMachine( 2501): invokeEnterMethods: ObtainingIpState

D/Tethering( 2501): sendTetherStateChangedBroadcast 1, 0, 0

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=147462

D/WifiStateMachine( 2501): processMsg: ObtainingIpState

D/Wcfg80211: Calling CRDA for country: US

ifiStateMachine( 2501): ObtainingIpState{ what=147462 when=-8ms obj=android.net.wifi.StateChangeResult@42090f98 }

D/WifiStateMachine( 2501): processMsg: L2ConnectedState

D/WifiStateMachine( 2501): processMsg: ConnectModeState

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=131155

D/WifiStateMachine( 2501): processMsg: ObtainingIpState

D/WifiStateMachine( 2501): ObtainingIpState{ what=131155 when=-6ms arg1=1 }

D/WifiStateMachine( 2501): processMsg: L2ConnectedState

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=131101

D/WifiStateMachine( 2501): processMsg: ObtainingIpState

D/WifiStateMachine( 2501): ObtainingIpState{ what=131101 when=-7ms obj=android.net.wifi.WifiStateMachine$TetherStateChange@42096700 }

D/WifiStateMachine( 2501): processMsg: L2ConnectedState

D/WifiStateMachine( 2501): processMsg: ConnectModeState

D/WifiStateMachine( 2501): processMsg: DriverStartedState

D/WifiStateMachine( 2501): processMsg: SupplicantStartedState

D/WifiStateMachine( 2501): processMsg: DefaultState

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=196612

D/WifiStateMachine( 2501): processMsg: ObtainingIpState

D/WifiStateMachine( 2501): ObtainingIpState{ what=196612 when=-7ms }

D/WifiStateMachine( 2501): processMsg: L2ConnectedState

E/wpa_supplicant( 3054): wpa_driver_nl80211_driver_cmd: failed to issue private commands

I/wpa_supplicant( 3054): wlan0: CTRL-EVENT-DRIVER-STATE HANGED

D/WifiStateMachine( 2501): setSuspendOptimizationsNative: 1 false

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=131131

D/WifiStateMachine( 2501): processMsg: ObtainingIpState

D/WifiStateMachine( 2501): ObtainingIpState{ what=131131 when=-5ms }

D/WifiStateMachine( 2501): processMsg: L2ConnectedState

D/WifiStateMachine( 2501): processMsg: ConnectModeState

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=147468

D/WifiStateMachine( 2501): processMsg: ObtainingIpState

D/WifiStateMachine( 2501): ObtainingIpState{ what=147468 when=-4ms }

D/WifiStateMachine( 2501): processMsg: L2ConnectedState

D/WifiStateMachine( 2501): processMsg: ConnectModeState

D/WifiStateMachine( 2501): processMsg: DriverStartedState

D/WifiStateMachine( 2501): processMsg: SupplicantStartedState

D/WifiStateMachine( 2501): processMsg: DefaultState

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=131084

D/WifiStateMachine( 2501): processMsg: ObtainingIpState

D/WifiStateMachine( 2501): ObtainingIpState{ what=131084 when=0 }

D/WifiStateMachine( 2501): processMsg: L2ConnectedState

D/WifiStateMachine( 2501): processMsg: ConnectModeState

D/WifiStateMachine( 2501): processMsg: DriverStartedState

D/WifiStateMachine( 2501): processMsg: SupplicantStartedState

D/WifiStateMachine( 2501): transitionTo: destState=SupplicantStoppingState

D/WifiStateMachine( 2501): handleMessage: new destination call exit/enter

D/WifiStateMachine( 2501): setupTempStateStackWithStatesToEnter: X mTempStateStackCount=1,curStateInfo: state=DefaultState,active=true,parent=n

ull

D/WifiStateMachine( 2501): invokeExitMethods: ObtainingIpState

D/WifiStateMachine( 2501): invokeExitMethods: L2ConnectedState

D/WifiStateMachine( 2501): invokeExitMethods: ConnectModeState

D/WifiStateMachine( 2501): invokeExitMethods: DriverStartedState

D/WifiStateMachine( 2501): invokeExitMethods: SupplicantStartedState

D/WifiStateMachine( 2501): moveTempStackToStateStack: i=0,j=1

D/WifiStateMachine( 2501): moveTempStackToStateStack: X mStateStackTop=1,startingIndex=1,Top=SupplicantStoppingState

D/WifiStateMachine( 2501): invokeEnterMethods: SupplicantStoppingState

D/WifiStateMachine( 2501): Stopping DHCP and clearing IP

D/WifiStateMachine( 2501): setSuspendOptimizationsNative: 1 true

E/wpa_supplicant( 3054): wpa_driver_nl80211_driver_cmd: failed to issue private commands

D/CommandListener( 2173): Clearing all IP addresses on wlan0

D/WifiStateMachine( 2501): setDetailed state, old =OBTAINING_IPADDR and new state=DISCONNECTED

D/WifiStateMachine( 2501): stopping supplicant

D/WifiStateMachine( 2501): setWifiState: disabling

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=131083

D/WifiStateMachine( 2501): processMsg: SupplicantStoppingState

D/WifiStateMachine( 2501): deferMessage: msg=131083

D/WifiStateMachine( 2501): handleMessage: X

D/ConnectivityService( 2501): ConnectivityChange for WIFI: DISCONNECTED/DISCONNECTED

D/ConnectivityService( 2501): Attempting to switch to mobile

D/ConnectivityService( 2501): Attempting to switch to BLUETOOTH_TETHER

D/ConnectivityService( 2501): Attempting to switch to ETHERNET

D/Nat464Xlat( 2501): requiresClat: netType=1, hasIPv4Address=false

D/WifiStateMachine( 2501): handleMessage: E msg.what=131143

D/WifiStateMachine( 2501): processMsg: SupplicantStoppingState

D/WifiStateMachine( 2501): processMsg: DefaultState

D/WifiStateMachine( 2501): handleMessage: X

D/BluetoothAdapter( 2754): 1105219112: getState() :  mService = null. Returning STATE_OFF

I/wpa_supplicant( 3054): wlan0: CTRL-EVENT-DISCONNECTED bssid=80:6c:1b:de:9b:67 reason=3 locally_generated=1

D/WifiStateMachine( 2501): handleMessage: E msg.what=147460

D/WifiStateMachine( 2501): processMsg: SupplicantStoppingState

D/WifiStateMachine( 2501): processMsg: DefaultState

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=147462

D/WifiStateMachine( 2501): processMsg: SupplicantStoppingState

D/WifiStateMachine( 2501): processMsg: DefaultState

D/WifiStateMachine( 2501): handleMessage: X

D/Tethering( 2501): InitialState.processMessage what=4

D/Tethering( 2501): sendTetherStateChangedBroadcast 0, 0, 0

D/WifiStateMachine( 2501): handleMessage: E msg.what=131101

D/WifiStateMachine( 2501): processMsg: SupplicantStoppingState

D/WifiStateMachine( 2501): processMsg: DefaultState

D/WifiStateMachine( 2501): handleMessage: X

I/wpa_supplicant( 3054): wlan0: CTRL-EVENT-TERMINATING

D/WifiStateMachine( 2501): handleMessage: E msg.what=147458

D/WifiStateMachine( 2501): processMsg: SupplicantStoppingState

D/WifiStateMachine( 2501): Supplicant connection lost

D/WifiStateMachine( 2501): setWifiState: disabled

D/WifiStateMachine( 2501): transitionTo: destState=InitialState

D/WifiStateMachine( 2501): handleMessage: new destination call exit/enter

D/WifiStateMachine( 2501): setupTempStateStackWithStatesToEnter: X mTempStateStackCount=1,curStateInfo: state=DefaultState,active=true,parent=n

ull

Thanks And Regards,

Ranganath TM

[zoranl]

Hi Ranganath,

Do you have ethernet cable connected to the device?

Do you supply enough current to the device?

BR,

Zoran

[ranganathtm]

Hi Zoran,

No I don't have ethernet cable connected to device, but the wifi is connected via usb hub for my device.

Thanks And Regards,

Ranganath TM

[zoranl]

Hi Ranganath,

Could you try without hub?

Have you build driver as modules?  (remember return 0; for insmod in driver)

Could you add LOG to see what is the command?

BR,

Zoran

[ranganathtm]

Hi Zoran,

I cannot try without hub, because I have issues with usb wifi dongle,

Yes I build driver as module and I am returning 0 form that.

Thanks And Regards,

Ranganath TM