TP-Link TL-WN725N V2 works out of the box on Raspbian

[sasadangelo]

Hi left the connection opened for 2 hours and it never dropped.
I do not know what to think. Probably problem is solved.
However, thank you for support I appreciate it a lot.

[kbordzan]

Hi @MrEngman,

I have same situation as @sasadangelo, but in my case something is not working as you have described and sasadangelo confirmed.

RPi 2 with OSMC. Connected wired to router. WiFi dongle connected, adapter enabled, but network is disconneting.

First step:
use command:

Code: Select all

sudo rm /etc/modprobe.d/8188eu.conf
rm: cannot remove '/etc/modprobe.d/8188eu.conf': No such file or directory

lsmod command:
r8188eu is on the list.

What I'm missing or doing wrong? Is my version of OSMC different then one which sasadangelo was using?

[MrEngman]

Hi @MrEngman,

I have same situation as @sasadangelo, but in my case something is not working as you have described and sasadangelo confirmed.

RPi 2 with OSMC. Connected wired to router. WiFi dongle connected, adapter enabled, but network is disconneting.

First step:
use command:

Code: Select all

sudo rm /etc/modprobe.d/8188eu.conf
rm: cannot remove '/etc/modprobe.d/8188eu.conf': No such file or directory

lsmod command:
r8188eu is on the list.

What I'm missing or doing wrong? Is my version of OSMC different then one which sasadangelo was using?

Did you try what I suggested here viewtopic.php?p=911672#p911672.



MrEngman

[kbordzan]

Did you try what I suggested here viewtopic.php?p=911672#p911672.
MrEngman

Honestly saying no, as I have stuck with step one and wasn't not sure how to proceed to not brake anything.
Sorry, I'm not experienced with Linux.
I will try and let you know.

EDIT: One additional comment, as I wasn't aware that OSMC is responsible also for RPi updates, few days ago I have done manuall RPi update to Linux 4.1.18-v7+ #845, #848 and have used procedure from topic: viewtopic.php?f=28&t=62371 and everything was fine with WiFi dongle (diode was on all the time and connection was stable).

[kbordzan]

I have decided to install OSMC once again. Have found new version and dongle is working, but no SSH
Really strange.

[undertakerPi]

Tried the step by step instruction to cross compile 8188eu driver for custom kernel.

https://github.com/daber/rtl8188eu/blob ... README.txt

Code: Select all

How to cross compile rtl8188eu driver
0. create and enter GIT folder 
1. Clone this repository.
	git clone --depth 1 https://github.com/daber/rtl8188eu.git
2. Clone raspbery pi kernel source
	git clone --depth 1 https://github.com/raspberrypi/linux.git
3. Clone build tools
	git clone --depth 1 https://github.com/raspberrypi/tools.git
4. Clone build firmware
	git clone --depth 1 https://github.com/raspberrypi/firmware.git
5. go to GIT/rtl8188eu folder. Then into rtl8188 folder copy /proc/config.gz file from your raspberry PI (use ethernet and SCP or copy proc/config.gz to sdcard and use card reader to copy to PC)
6. On RPi execute command uname -r, then on PC open config.mk file in text editor and modify variable KVER with the value retured by uname command.
7. in rtl8188eu folder run [b]"make"[/b] command; if some question about new modules appear answer "M"
8. Copy out dir back to RPi
9. On RPI enter out folder then sudo ./install.sh. -after that dongle should be now visible in ifconfig
10. Configure your wifi ( easiest way startx wpa_gui)

Code: Select all

pi@raspberrypi:~ $ uname -r
4.1.20+

Get the following error when running make step 7:

Code: Select all

/home/<USER>/DevelopRPI/rtl8188eu/os_dep/rtw_android.c: In function ‘rtw_android_cmdstr_to_num’:
/home/<USER>/DevelopRPI/rtl8188eu/os_dep/rtw_android.c:83:3: error: implicit declaration of function ‘strnicmp’ [-Werror=implicit-function-declaration]
   if (0 == strnicmp(cmdstr , android_wifi_cmd_str[cmd_num],
   ^
cc1: some warnings being treated as errors
make[2]: *** [/home/<USER>/DevelopRPI/DevelopKernelRPi/rtl8188eu/os_dep/rtw_android.o] Fehler 1
make[1]: *** [_module_/<USER>/DevelopRPI/rtl8188eu] Fehler 2
make[1]: Verzeichnis »/home/<USER>/DevelopRPI/linux« wird verlassen
make: *** [modules] Fehler 2

When adding

Code: Select all

EXTRA_CFLAGS += -w

make comes to an end, but the 8188eu does not work.
dmesg on raspberrypi output ->

Code: Select all

[   10.471245] 8188eu: Unknown symbol strnicmp (err 0)

[DougieLawson]

You can save yourself a lot of pain and make it easier with rpi-source to get the kernel source and the build tools. It will work of your current uname -r value to get the source that matches your kernel.

https://github.com/notro/rpi-source

[undertakerPi]

Thank you for your reply. Anyway that is not the cross-compile way. :/ Any other suggestions?

[DougieLawson]

Thank you for your reply. Anyway that is not the cross-compile way. :/ Any other suggestions?

Get a RPi3B and quit using cross compilation.

[kbordzan]

Hi @MrEngman,

I have same situation as @sasadangelo, but in my case something is not working as you have described and sasadangelo confirmed.

RPi 2 with OSMC. Connected wired to router. WiFi dongle connected, adapter enabled, but network is disconneting.

First step:
use command:

Code: Select all

sudo rm /etc/modprobe.d/8188eu.conf
rm: cannot remove '/etc/modprobe.d/8188eu.conf': No such file or directory

lsmod command:
r8188eu is on the list.

What I'm missing or doing wrong? Is my version of OSMC different then one which sasadangelo was using?

Did you try what I suggested here viewtopic.php?p=911672#p911672.



MrEngman

It didn't help at all. Still disconnecting.
What else I can do?

Is it possible to create own driver based on your drivers for Raspbian?

[sam nazarko]

Hi

Over the past several months, I've been moving all mainlined WiFi drivers out of the kernel and building them as external modules, maintaining new kernel compatibility and adding various fixes (incl vid/pid) fixes as I go along. This has been done for 8192cu, 8812au, 8192du, r8192eu.

It seems that r8188eu, despite being a long standing resident of mainline, isn't very good. It's already on my list to move this driver out of tree and work on some improvements for OSMC. I just need to find a little bit of time (and a dongle) to do it. I've got one somewhere, just need to find it.

Bloody Realtek..

Best

Sam

[kbordzan]

It seems that r8188eu, despite being a long standing resident of mainline, isn't very good. It's already on my list to move this driver out of tree and work on some improvements for OSMC. I just need to find a little bit of time (and a dongle) to do it. I've got one somewhere, just need to find it.

Bloody Realtek..

Best

Sam

Great! Please let me know when it will be ready and how to install.