USB (GSM-)modems and ACM class driver

Hi,

I'm trying to get a Falcom Samba75 USB-GSM modem (similar to Siemens MC75) 
to work under Linux 2.4.x. These modems are handled by the ACM class driver
and are working fine under 2.6 kernels but not under any 2.4.x kernel.

I've seen similar problems reported in some forums, also under FreeBSD systems.
Unfortunately I did not see any solution for this issue.

This is what I get in the kernel log:
..
acm.c: v0.21:USB Abstract Control Model driver for USB modems and ISDN adapters
hub.c: new USB device 00:15.0-1, assigned address 2
Manufacturer: Siemens AG Wireless Modules
Product: MC75
ttyACM0: USB ACM device
usb.c: USB disconnect on device 00:15.0-1 address 2
hub.c: new USB device 00:15.0-1, assigned address 3
Manufacturer: Siemens AG Wireless Modules
Product: MC75
ttyACM0: USB ACM device
usb.c: USB disconnect on device 00:15.0-1 address 3
hub.c: new USB device 00:15.0-1, assigned address 4
Manufacturer: Siemens AG Wireless Modules
Product: MC75
ttyACM0: USB ACM device
usb.c: USB disconnect on device 00:15.0-1 address 4


I know that 2.4 is not what this list really cares about. But at the moment
I have no chance to upgrade the target systems to 2.6.

If anybody has some information about what is going wrong under 2.4 with such
modems I would be glad here about that.

Matthias

-------------------------------------------------------------------------
This SF.net email is sponsored by: Splunk Inc.
Still grepping through log files to find problems?  Stop.
Now Search log events and configuration files using AJAX and a browser.
Download your FREE copy of Splunk now >> http://get.splunk.com/
_______________________________________________
[email protected]
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel