I would love to have my Lasat Speed II adapter(isdn) to work in MD 10.
Anybody know how to do it ?

Ole


Thanks for the reply. I did just that....and it worked !

Thanks again.
Ole

I have a usb isdn modem working fine under Mandrake 10, its a NT1 PlusII.
It took a bit of fiddling to get it to work, but basically all I had too do create a symbolic link.
My isdn modem shows as up in the system as /dev/usb/acm/0
all I did was linked that to /dev/modem
so from /dev I did the following ln -s /dev/usb/acm/0 modem
Your modem may not show as the same as mine.
You could install usb view that provides a nice graphical display of all currently installed usb devices, too see if the isdn modem has been detected.

Hope this helps

I did this too, but after I came back to the computer this morning after turning it off over night, my NT1 +2 wasn't working again. I had it connecting at 128kDVO as well. Is the link that you create a permanent link? cause in my ppp dialer it does not recognize it.

I've got the nt1 +2 set up as /dev/ttyACM0 and linked to /dev/modem but it does not seem to work.

I can't think of what else to do at the moment.

Hi LeeJam,
Well as i said earlier under mandrake the modem shows up as /dev/usb/acm/0 I i just created a symbolic link for that device (modem) on my system the link doesnt dissappear after shutting down. Occasionally my machine loses the isdn modem, i use usbview to check and see if it has been detected. If it hasnt been detected on boot up i usually just unplug the usb cable and then plug it back in which seems to fix it.
Run usbview to see if the isdn modem has been detected.
Hope this has been helpfull.

p.s
There is probably a better (ie right way to do it) but thats what works for me, and im still learning how to use and configure my linux system

Thanks, maddog, but I have one more question, if that's ok.

for some reason I have to keep typing in " modprobe cdc-acm" into a terminal after I have rebooted to make my dialer recognise the isdn modem.

I put cdc-acm into the modules file to (hopefully) make it boot at startup. It didn't.

Any ideas on how to make it work at startup?

Hi LeeJam

In my modules.conf file all I have that is related to my usb ISDN modem is "probeall usb-interface usb-uhci"
and i havent been able tolocate any where else that refers to the USB bus.
What distro are you running?
I will try to find the link to a site that had a really good guide to setting the NT1 Plus II up with Linux various distros, including how to configure setup usb.
At the moment i can use either kppp or wvdial to connect to the internet.


Setting up an ISDN Telstra NT1 Plus II modem under Linux
It took me ages to figure out, but turned out to be very simple under RedHat:

1. Get your USB going (or you can use the serial cable, but you won't be able to run 128k). For RedHat 8.0, I didn't have to do anything.
2. Use the "Internet Configuration Wizard" under the "System Tools" menu in Gnome
3. Choose "Modem Connection" from the list
4. Put in the 0198 308 888 phone number, and login and password
5. Create the new connection
6. Now, go to the "Network Device Control" and click on "Configure..."
7. Click on the new modem
8. Click on "Hardware", and edit the config of the modem.
9. Change the "Modem device" to be "/dev/input/ttyACM0" (or ttyACM1 or whatever works depending on where you've plugged the modem into)
10. Save, and it should be able to be activated using the "Network Device Control". Will work for 64k PPP by default.


Here are some modem strings that are useful (thanks to Nivan Lau):

* Connecting 128K PPP: ATZ!Z=9!T0=0!T2=1!T4=0
* Connecting 128k PPP DVO: ATZ!Z=9!T0=0!T2=1!T4=1

I'm running mandrake 10.0 official

I haven't tried wvdial yet, I'm just using kppp.

My main problem is that the module does not seem to load. I'll try adding the module to the module.conf file instead of the module file.

Cool, thanks again.

Dear all,
Try placing cdc-acm in modules.conf.

Appleman1234

BTW does anyone know the /dev location of this modem under udev? Because I am running MDK 10.1 CE and it uses udev and I can't find modem when its plugged in.


Cya L8ter

Appleman1234

I've read thru this thread & thought I'd found the solution to my problem.

Same modem, + mdk 10, no /dev/modem? where is it?
When I attempt to make sym link as described (-s /dev/etc etc) I'm told "unknown command -s ??

What am I doing wrong?

I've messed with (read hooked on) computers since the old cmp/dos days but this bloody thing called "linux" is has really got me going.

Got to get a handle on it before I die. The way things are going I'm going to have to live 'till I'm 110

All fixed! thanks.
Old dog now happy dog ;>)

Dear all,
I am not sure if it is udev's fault that the modem isn't recognised, apparently its the cdc-acm driver and it haywire in any kernel after 2.6.4 and until kernel 2.6.9. I will keep trying to get it working.
If you can help me, please post how you got Telstra Nt Plus2 working with mandrake 10.1. I have official.
I am going to try and udpate my kernel to 2.6.9.


Appleman1234

I have been trying to get this modem to go under FC3. What hair i've got left has gone grey!
Mdk 10.0, no probs, just followed maddogs instruction about symlink, but Debian ( knoppix 3.6) no problem, it even asks if you want a symlink created!

Maybe the kernel version is the problem in Fc3? or maybe udev?
Let me know how you go after updating the kernel if you can, i'd love to know if all the time i've wasted on this *&^%$# has just been a waste of time.

Dear all,
It is a udev problem. There is no udev rule to recognise the modem. Although it could be a combination of udev and kernel bugs in cdc-acm module in 2.6.8 kernel. I am running Slackware 10 and udev loads cdc-acm but doesn't create a device file in dev. I have tried mknod the device file and building custom udev rules but neither allows you to see the device of the modem. Mandrake is pre udev so it works, Fedora core 2 is also pre udev so it works but anything with udev doesn't work at the moment. Some one should report this problem to cdc-acm or udev mailing lists so it can be fixed.

Appleman1234

PS: Tried to access the created dev (mknod) file with wvdial and KPPP. No luck.

Yeah, I built new rules in /udev/rules.d & had no luck either. Tried a couple of combinations but !

Ah well, at least it wasn't just me.

I'm a little late in finding this thread but hey. I have come across the cdc-acm kernel problems for a while now. I actively follow each kernel release and while it worked flawlessly for me from 2.6.0 through to 2.6.7, I have had problems with each release since. I was hoping 2.6.10 would have it fixed but doesn't look like it.

I'm still not certain if it's purely a kernel bug or something I am missing. I have gone all through it a million times, and it detects it and appears to send a command to the modem but no idea if it ever reaches it or if the modem just isn't talking back, so pppd/chat just times out with "alert". Is this really a common problem? Has anyone probed this further than I have?