[SOLVED] Realtek TL-WN723v3 RTL8188EUS working 8188eu driver - AP mode - hostapd 2.9
by abga from LinuxQuestions.org on (#53XBE)
I own a TP-Link TL-WN723v3 and struggled for some time to get it in AP mode with the available drivers and using an actual version of hostapd. In the driver repos on github and in some other tutorials I found, some ancient and specially tailored versions of hostapd were suggested for Realtek WiFi dongles and I never considered them from security reasons.
- lsusb output:
Code:Bus 001 Device 004: ID 0bda:8179 Realtek Semiconductor Corp. RTL8188EUS 802.11n Wireless Network AdapterStarted this thread to share my experience and to report my findings about the rtl8188eu SlackBuild (which I never used until my try today):
First the SlackBuild:
http://slackbuilds.org/repository/14...ork/rtl8188eu/
- needs the following added to the Makefile in order to build on -current (latest toolchain)
Code:EXTRA_CFLAGS += -Wno-address-of-packed-member
EXTRA_CFLAGS += -Wno-implicit-function-declaration- the version is really old, not reflecting the name of the zip file.
- modinfo:
version: v4.1.4_6773.20130222
author: Realtek Semiconductor Corp.
- and it doesn't load/work - kernel log:
[10405.633962] 8188eu: Unknown symbol signal_pending (err 0)
[10405.634266] 8188eu: Unknown symbol allow_signal (err 0)
The version I've been using for the last years:
https://github.com/lwfinger/rtl8188e...4.1.8_9499.zip
- modinfo:
version: v4.1.8_9499.20131104
author: Realtek Semiconductor Corp.
- which works stable as station, but crashes so beautifully with hostapd 2.9 initializing it in AP mode
Code:[10767.585124] usbcore: registered new interface driver rtl8188eu
[11162.056334] R8188EU: Loaded firmware file rtlwifi/rtl8188eufw.bin
[11162.056351] R8188EU: Firmware Version 11, SubVersion 1, Signature 0x88e1
[11162.423171] ==> rtl8188e_iol_efuse_patch
[11162.748122] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[11162.753517] pgd = b4360000
[11162.755615] [00000000] *pgd=341bb835, *pte=00000000, *ppte=00000000
[11162.757877] Internal error: Oops: 17 [#1] SMP ARM
[11162.760184] Modules linked in: 8188eu(O)The latest master from https://github.com/lwfinger/rtl8188eu/ builds but doesn't work even as station.
Finally, the last driver release works fine both as station and as AP with the latest hostapd 2.9.
A minor issue is that the link LED doesn't light/blink. Personally I'm very happy about it, because it was way too bright (I had a piece of black tape covering it...).
- get it:
Code:git clone -b v5.2.2.4 https://github.com/lwfinger/rtl8188eu.git- needs the following added to the Makefile in order to build on -current (latest toolchain)
Code:EXTRA_CFLAGS += -Wno-address-of-packed-member
EXTRA_CFLAGS += -Wno-implicit-function-declaration- modinfo:
version: v5.2.2.4_25483.20171222
author: Realtek Semiconductor Corp.
- /etc/modprobe.d/8188eu.conf (same as with v4.1.8_9499)
Code:blacklist r8188eu
options 8188eu rtw_power_mgnt=0 rtw_enusbss=0


- lsusb output:
Code:Bus 001 Device 004: ID 0bda:8179 Realtek Semiconductor Corp. RTL8188EUS 802.11n Wireless Network AdapterStarted this thread to share my experience and to report my findings about the rtl8188eu SlackBuild (which I never used until my try today):
First the SlackBuild:
http://slackbuilds.org/repository/14...ork/rtl8188eu/
- needs the following added to the Makefile in order to build on -current (latest toolchain)
Code:EXTRA_CFLAGS += -Wno-address-of-packed-member
EXTRA_CFLAGS += -Wno-implicit-function-declaration- the version is really old, not reflecting the name of the zip file.
- modinfo:
version: v4.1.4_6773.20130222
author: Realtek Semiconductor Corp.
- and it doesn't load/work - kernel log:
[10405.633962] 8188eu: Unknown symbol signal_pending (err 0)
[10405.634266] 8188eu: Unknown symbol allow_signal (err 0)
The version I've been using for the last years:
https://github.com/lwfinger/rtl8188e...4.1.8_9499.zip
- modinfo:
version: v4.1.8_9499.20131104
author: Realtek Semiconductor Corp.
- which works stable as station, but crashes so beautifully with hostapd 2.9 initializing it in AP mode
Code:[10767.585124] usbcore: registered new interface driver rtl8188eu
[11162.056334] R8188EU: Loaded firmware file rtlwifi/rtl8188eufw.bin
[11162.056351] R8188EU: Firmware Version 11, SubVersion 1, Signature 0x88e1
[11162.423171] ==> rtl8188e_iol_efuse_patch
[11162.748122] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[11162.753517] pgd = b4360000
[11162.755615] [00000000] *pgd=341bb835, *pte=00000000, *ppte=00000000
[11162.757877] Internal error: Oops: 17 [#1] SMP ARM
[11162.760184] Modules linked in: 8188eu(O)The latest master from https://github.com/lwfinger/rtl8188eu/ builds but doesn't work even as station.
Finally, the last driver release works fine both as station and as AP with the latest hostapd 2.9.
A minor issue is that the link LED doesn't light/blink. Personally I'm very happy about it, because it was way too bright (I had a piece of black tape covering it...).
- get it:
Code:git clone -b v5.2.2.4 https://github.com/lwfinger/rtl8188eu.git- needs the following added to the Makefile in order to build on -current (latest toolchain)
Code:EXTRA_CFLAGS += -Wno-address-of-packed-member
EXTRA_CFLAGS += -Wno-implicit-function-declaration- modinfo:
version: v5.2.2.4_25483.20171222
author: Realtek Semiconductor Corp.
- /etc/modprobe.d/8188eu.conf (same as with v4.1.8_9499)
Code:blacklist r8188eu
options 8188eu rtw_power_mgnt=0 rtw_enusbss=0