TL-WN723N v.3-RTL8188EU

[ANSELM_KEREM]

Hello,
​
I have tried vary of solutions to run tl-wn723 v.3 in lubuntu14.04lts.
Downloaded rtl8188eu-master.zip and completed installation steps by

make
sudo make install

Then when I enterred,

sudo modprobe 8188eu

here is the result:

"modprobe:error:could not insert '8188eu':device or resource busy"

Can anybody help me?

[chili555]

That probably means that the native default driver rtl8188eu was already loaded and running:

lsmod | grep 8188

What trouble are you having that caused you to try a different driver?

[ANSELM_KEREM]

Hi,

Thanks for reply.

Output for that code is
"r8188eu 755586 0"

Probably as you said it is running right now. But I can't still use the usb modem.

Well, I've searched for some solutions to run usb wireless modem.
And most of them were pointing rtl8188eu.
Doesn't it fix with TL-WN723v3 modem?
Should I use different one?

[ANSELM_KEREM]

To give expand information about my operating system:

Kernel-Linux 3.13.0-24-generic(i686)
Default C Compiler-GNU C Compiler Version 4.8.2(Ubuntu 4.8.2-19Ubuntu1)
Distribution-Ubuntu 14.04LTS

[chili555]

With the modem inserted, please run and post:

lsusb

[ANSELM_KEREM]

Here is the output;

Bus 001 Device 002: ID 0bda:8179 Realtek Semiconductor Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
kerem@hp:~$

Thanks.

[chili555]

0bda:8179 Realtek Semiconductor Corp.

It turns out that the loaded driver, r8188eu, is correct for your device; from modinfo:

$ modinfo r8188eu | grep 8179
alias:          usb:v07B8p8179d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v0BDAp8179d*dc*dsc*dp*ic*isc*ip*in*

If you have the device, the driver and it loads automatically but doesn't work as expected, something else is wrong. Compiling a different driver is unlikely to fix the real, underlying problem. Let's see if the logs hold any clues:

dmesg | grep 8188
rfkill list all
iwconfig

[ANSELM_KEREM]

Yes, I have that device. And here are the other outputs:

$ dmesg | grep 8188

[ 0.338188] pci 0000:00:1f.1: reg 0x20: [io 0x4c40-0x4c4f]

[ 21.235435] r8188eu: module is from the staging directory, the quality is unknown, you have been warned.

[ 21.264032] Chip Version Info: CHIP_8188E_Normal_Chip_TSMC_D_CUT_1T1R_RomVer(0)

[ 21.477395] usbcore: registered new interface driver r8188eu

[ 21.690338] 8188eu: module verification failed: signature and/or required key missing - tainting kernel

[ 21.698402] Error: Driver 'r8188eu' is already registered, aborting...

While making a copy of editor outputs to notepad there could be some mistakes. Because I am texting from a windows. Sorry for that.

[ANSELM_KEREM]

Second Code:

$ rfkill list all


0: phy
0: Wireless LAN

Soft blocked: no

Hard blocked: yes

[ANSELM_KEREM]

irda0 no wireless extensions.


lo no wireless extensions.


eth0 no wireless extensions.


eth1 unassociated ESSIDff/any Nickname:"ipw2100"


Mode:Managed Channel=0 Access Point: Not-Associated
Bit Rate: 0 kb/s Tx-Power: off


Retry short limit:7 RTS thr: off Fragment thrff


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


wlan1 unassociated Nickname:"<WIFI@REALTEK>"


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


Sensitivity: 0/0

Retryff RTS thr: off Fragment thrff


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

While making a copy of editor outputs to notepad there could be some mistakes. Because I am texting from a windows. Sorry for that.