ucom0 - instant detached

Hi,

I've just purchased a samba 75 GSM modem. Unfortunly, I have some 
problems when i plug it in my server. The server is running FreeBSD 
RELENG 7.0 current.

I have been searching around for a while now. And the only thig I can 
find is something about putting "{ 0x0681, 0x0034, ANY, 
{UQ_ASSUME_CM_OVER_DATA }}," into usb_quirks.c and then rebuild my 
kernel. But as I can see "CM_ASSUMCE_CM_OVER_DATA" has been removed, 
according to this: 
http://www.jp.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/usb/usb_quirks.c


Everytime I plug in the GSM modem I get this in my message log.

--- snip ----
Aug  6 14:00:41 apollon root: Unknown USB device: vendor 0x0681 product 
0x0034 bus uhub0
Aug  6 14:00:42 apollon kernel: ucom0: <Siemens AG Wireless Modules 
MC75, class 2/0, rev 1.10/0.00, addr 2> on uhub0
Aug  6 14:00:42 apollon kernel: ucom0: iclass 2/2
Aug  6 14:00:42 apollon kernel: ucom0: data interface 1, has CM over 
data, has no break
Aug  6 14:00:42 apollon kernel: ucom0: status change notification available
Aug  6 14:00:42 apollon kernel: ucom0: at uhub0 port 2 (addr 2) disconnected
Aug  6 14:00:42 apollon kernel: ucom0: detached
--- snip ----

Thanks in advance and kind regards,
Daniel Bielefeldt