[plug] USB modem / cdc-acm problem in kernel 2.6.8?

[Steve Boak]

Hi all

Anyone else using (or tried to use) the cdc-acm.o module under kernel 2.6.8 
(debian sarge)? It was working perfectly controlling my Telstra NT1+II ISDN 
modem in 2.4.22 (which uses acm, not cdc-acm), but after upgrading the kernel 
it no longer works. Hotplug is working and my modem is detected, but the 
cdc-acm module fails to create the /dev/ttyACM0 device as it used to.

I have googled this, but there doesn't seem to be much in the way of solutions 
out there - just a few me-too messages.

Also, and this one has caught me by suprise, /proc/bus/usb no longer exists - 
even back on 2.4.22 (debian sarge) that I am using now. Maybe it disappeared 
in one of the sarge updates? Where do I look for what used to be 
in /proc/bus/usb?

Any hints or tips on how to work out what is going on?

Steve

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