tl-wn725N not working on kernel linux v 3.17

[smibcn]

Hello, I'm trying to set up my tl-wn725n v2 using the driver rtl8188eu in a linux kernel (3.17 version) compiled using yocto dizzy. The architecture is an arm am335x which is similar to Beagle Bone Black. The steps I've followed are the next: 1-Generate linux configuration using menuconfig:

     CONFIG_WIRELESS=y
     CONFIG_WIRELESS_EXT=y
     CONFIG_WEXT_CORE=y
     CONFIG_WEXT_PROC=y
     CONFIG_WEXT_SPY=y
     CONFIG_WEXT_PRIV=y
     CONFIG_CFG80211=y
     CONFIG_CFG80211_WEXT=y
     CONFIG_LIB80211=y
     CONFIG_LIB80211_CRYPT_WEP=y
     CONFIG_LIB80211_CRYPT_CCMP=y
     CONFIG_LIB80211_CRYPT_TKIP=y
     CONFIG_MAC80211=y
     CONFIG_MAC80211_HAS_RC=y
     CONFIG_MAC80211_RC_MINSTREL=y
     CONFIG_MAC80211_RC_MINSTREL_HT=y
     CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
     CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"

     CONFIG_RFKILL=y
     CONFIG_RFKILL_LEDS=y
     CONFIG_RFKILL_REGULATOR=y

     CONFIG_WLAN=y
     CONFIG_HOSTAP=m
     CONFIG_HOSTAP_FIRMWARE=y
     CONFIG_RTL_CARDS=m

      CONFIG_STAGING=y
     CONFIG_R8188EU=m
     CONFIG_88EU_AP_MODE=y
     CONFIG_WIRELESS=y
     CONFIG_WIRELESS_EXT=y
     CONFIG_WEXT_CORE=y
     CONFIG_WEXT_PROC=y
     CONFIG_WEXT_SPY=y
     CONFIG_WEXT_PRIV=y
     CONFIG_CFG80211=y
     CONFIG_CFG80211_WEXT=y
     CONFIG_LIB80211=y
     CONFIG_LIB80211_CRYPT_WEP=y
     CONFIG_LIB80211_CRYPT_CCMP=y
     CONFIG_LIB80211_CRYPT_TKIP=y
     CONFIG_MAC80211=y
     CONFIG_MAC80211_HAS_RC=y
     CONFIG_MAC80211_RC_MINSTREL=y
     CONFIG_MAC80211_RC_MINSTREL_HT=y
     CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
     CONFIG_MAC80211_RC_DEFAULT="minstrel_ht" 
     CONFIG_RFKILL=y
     CONFIG_RFKILL_LEDS=y
     CONFIG_RFKILL_REGULATOR=y

     CONFIG_WLAN=y
     CONFIG_HOSTAP=m
     CONFIG_HOSTAP_FIRMWARE=y
     CONFIG_RTL_CARDS=m

      CONFIG_STAGING=y
     CONFIG_R8188EU=m
     CONFIG_88EU_AP_MODE=y

After that, I've added the next packages at my image (.bb recipe): iw wpa-supplicant hostapd

Once, the embedded system is built and is booting, the systems shows the next messages:

     [    2.742724] usb 2-1: new high-speed USB device number 2 using musb-hdrc
     [    2.904674] usb 2-1: device v0bda p8179 is not supported
     [    2.910263] usb 2-1: New USB device found, idVendor=0bda, idProduct=8179
     [    2.917440] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
     [    2.924960] usb 2-1: Product: 802.11n NIC
     [    2.929164] usb 2-1: Manufacturer: Realtek
     [    2.933491] usb 2-1: SerialNumber: 00E04C0001
     [    7.313640] r8188eu: module is from the staging directory, the quality is unknown, you have been warned.
     [    7.509115] Chip Version Info: CHIP_8188E_Normal_Chip_TSMC_D_CUT_1T1R_RomVer(0)
     [    7.779753] usbcore: registered new interface driver r8188eu

when I try to up the wlan0 appears the next message (ifconfig wlan0 up):

     [  102.413361] R8188EU: Firmware Version 11, SubVersion 1, Signature 0x88e1

     [  102.452272] 

     [  102.453873] =================================

     [  102.458441] [ INFO: inconsistent lock state ]

     [  102.463018] 3.17.0-dirty #1 Tainted: G         C    

     [  102.468221] ---------------------------------

     [  102.472791] inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage.

     [  102.479083] ifconfig/455 [HC1[1]:SC0[0]:HE0:SE1] takes:

     [  102.484553]  (&(&(pqueue->lock))->rlock){?.....}, at: [<bf027ae8>] rtw_free_xmitbuf+0x54/0xd8 [r8188eu]

     ...

     MAC Address = xx:xx:xx:xx:xx:xx

iwconfig output:

      wlan0     unassociated  Nickname:"<WIFI@REALTEK>"

      Mode:Auto  Frequency=2.412 GHz  Access Point: Not-Associated   

      Sensitivity:0/0  

      Retry:off   RTS thr:off   Fragment thr:off

      Encryption key:off

      Power Management:off

      Link Quality:0  Signal level:0  Noise level:0

      Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0

      Tx excessive retries:0  Invalid misc:0   Missed beacon:0

My etc/network/interfaces configuration is:

      iface wlan0 inet dhcp
                wireless_mode managed
                wireless_essid My_Wifi
                wpa-driver wext
      wpa-conf /etc/wpa_supplicant.conf

and the wpa_supplicant.conf is:

      ctrl_interface=/var/run/wpa_supplicant
      ctrl_interface_group=0
      update_config=1

      network={
                ssid="SP_ID"
                sscan_id=1
                proto=RSN
                key_mgmt=WPA-PSK
                pairwise=CCMP TKIP
                #psk="xxxxxxx"
                psk=long_number_obtained from wpa_pass_phrase
      }

The best thing is that i'm possible to scan all the avalaibable wifis using the iwlist wlan0 scan, but not i'm able to connect it.

Can Anyone help me? If it is necessary more information, I'm glad to post it.

Thanks for your replays!

PS. I've copied the rtl8188eufw.bin to the next path: /lib/firmware/rtlwifi

[CGarces]

Have you tried to compile an older version.? Looks like fcc9034b0d2170b4942133a43a9521aab2e0beac was working fine on legacy kernels.

[smibcn]

Hi! currently, It is working fine and I didn't have any problem yet. However, it worries me the message about it can enter in a DEADLOCK state. I'm aware that is a warning, but I don't know how to handle it and if it can be a problem in the future. rtlu8188eu firmware is what you can find in the linux kernel version 3.17. As you can see above:

R8188EU: Firmware Version 11, SubVersion 1, Signature 0x88e1

Thanks for your replay.