Hello Rumen,
I have checked all you talk about.
Everything was ok :
udev alredy installed and runing on my RPI.
Here is what the termina command returns.
****
bregou@bregou-desktop:~$ apt-cache policy udev
udev:
Installé : 229-4ubuntu12
Candidat : 229-4ubuntu12
Table de version :
*** 229-4ubuntu12 500
500 ports.ubuntu.com xenial-updates/main armhf Packages
100 /var/lib/dpkg/status
229-4ubuntu10 500
500 ports.ubuntu.com xenial-security/main armhf Packages
229-4ubuntu4 500
500 ports.ubuntu.com xenial/main armhf Packages
****
For some tests I have installed "xenial" maybe that is what makes some issues...

Thanks Rumen
Best regards

I am sorry! I did my best to help!
I ran out of ideas
It works fine here.
What I can say is that It is not a driver issue.
It is a system configuration issue.

Rumen

Dear all.
I had a similar issue and was it solved to edit the rule in /etc/udev/ instead of /lib/udev. Unfortunately both exist in the system I don't know why but it was success for me.
Kind regards
Philippe

Hi All,

I made my own udev rules which also create a symlink with a logical name so that I can check for the presence of this named link to see if the system recognizes the device or not. This may help in determining if the udev rules are applied.

which then looks like this in /dev/

This symlink is not used by the driver, it's just intended for Humans

Hy everybody,
Thank you for all your answers.
Unfortunately i miss time to test what you told about.
I keep you inform when i have done it.

This week end I tested the setup on a laptop runing kubuntu 16.04 and everything is the same : EFW recognize only in server mode (as on the RPI).

Best regards, and once more Thanks a lot
David

Hi,
I puchased a EFW and tested it immediately. It worked right from the beginning without any problems on my Ubuntu LTS 16.04. Cool stuff, thanks a lot!

Best regards,
Klaus

Hello, thanks for this information,
So I don't know what hapened to all of my 3 computers runing kubuntu and ubuntu mate !
Best regards
David

David,
Can you verify that you have your rules in only one of the following locations:

/etc/udev/rules.d/99-sx.rules
/lib/udev/rules.d/99-sx.rules

if in both please remove one of them, probably this one /etc/udev/rules.d/99-sx.rules

if this does not help can you move the file from /lib/... to /etc/...
and verify you have this rule:
KERNEL=="hidraw*", ATTRS{idVendor}=="03c3", ATTRS{idProduct}=="1f01", GROUP="users", MODE="0666"

There is some udev problem, but I have no idea what...

David, please try this and let me know, I am curious
good luck!

Rumen

p.s. Klaus, thanks for the positive report of the driver

Hello Rumen,
I have tested what you talk about.
I had 2 rules files in the folder "/etc/udev/rules.d"
They were :
60-ssd-sheduler.rules
99-meadedsi.rules

I remove them, reboot, lauch kstars and indi in local mode : the same as before : EFW not recognized

I copy/paste all the files from /lib/... to /etc/... reboot lauch kstars, indi in local mode : the same as before : EFW not recognized

Moreover I have the rule you talk about at the end of the 99-asi.rules file.
KERNEL=="hidraw*", ATTRS{idVendor}=="03c3", ATTRS{idProduct}=="1f01", GROUP="users", MODE="0666"

As Klaus have good result using ubuntu, i'll try to install ubuntu and not kubuntu on one of my computer (i have a free hard drive somhere ).
I don't know when i will be able to do it, I miss time.
Next week i go for one week in the professionnal observatory "PIC DU MIDI" in the south of France.
If the sky is clear i will be realy busy I hope il will be so.

Hope those new infos help you Rumen.

Best Regards
David

David,
Pic du Midi is a nice place i love it
We have a collaboration with the people there, if you meet Eric Joselin (the current director of TBL) or Remi Cabanac (the former) say Hi to them from me
Eric was here 2 weeks ago.

Are you a professional Astronomer?

best
Rumen

Rumen,
It is so unexpected, you know people of the Pic du Midi !!!
I have met Remi Cabanac when i went to the Pic two years ago.
He makes us visiting "his" 2m telescope
Unfortunately I'm not a professional astronomer but an "amateur".
I go to the Pic as an amateur. There is an old professional telescope, we call the "T60", that we can use.
You have some delail here : www.astrosurf.com/t60/
I also kow the professional that use the 1m telescope.

The goal of our week at the Pic du midi is to do some spectroscopy.
A friend and I, we are working with a professionnal on some targets that we study in spectoscopy.

Of course I also do love the Pic, it's a so wonderful place (especialy in winter with the snow !)

It's my turn to ask you, you are a professional astronomer ? what kind of collaboration do you have with the TBL ?
Here is my mail : dbregou at gmail dot com
Regards
David

Hi David
I am only part time professional astronomer
We use TBL to obtain data to study the magnetic structure of giant stars.

Enjoy at the Pic
Rumen