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Date:      Tue, 13 Jan 2009 16:27:36 +0100
From:      Nick Hibma <>
Cc:        Rohit Tripathi <>,
Subject:   Re: hints on setting up usb cdma modem?
Message-ID:  <>
In-Reply-To: <+BE8V3eWlNumNoeRVXGwF9oosbU@Nxyl89WskzuM4RJ7pF/cdJZbOMo>
References:  <> <+BE8V3eWlNumNoeRVXGwF9oosbU@Nxyl89WskzuM4RJ7pF/cdJZbOMo>

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You might want to try the attached u3g.c driver file. I've not been able to 
verify that the switch mode command in it actually works as I have not had 
a report back.

If your IDs for the unswitched and switched devices are not yet in u3g 
and/or usbdevs please add them.

Let me know how things work!


> Mon, Jan 12, 2009 at 04:28:12PM -0500, Rohit Tripathi wrote:
> > I'm running current and after many failed attempts to setup my Novatel
> > U727, I'm posting here with whatever information could be of interest.
> >
> > When the modem is plugged in:
> >
> > umass0: <Novatel Wireless Inc. Novatel Wireless CDMA, class 0/0, rev
> > 1.10/0.00, addr 2> on uhub3
> > cd0 at umass-sim0 bus 0 target 0 lun 0
> > cd0: <Novatel Mass Storage 1.00> Removable CD-ROM SCSI-2 device
> > cd0: 1.000MB/s transfers
> > cd0: Attempt to query device size failed: NOT READY, Medium not present
> It is not the ucom endpoint -- it is some mass-storage endpoint that
> your modem seem to implement too.  Or you showed us not all dmesg parts
> that are related to your CDMA modem.  Do you have /dev/cuaU* devices?
> For the reference, mine CDMA modem attaches with the following dmesg
> (it's not U727, but it is CDMA modem that is supported by ucom):
> -----
> ucom0: <CMOTECH CO., LTD. CMOTECH CDMA Technologies, class 2/0, rev
> 2.00/0.00, addr 2> on uhub5 ucom0: iclass 2/2
> ucom0: data interface 1, has CM over data, has break
> ucom0: status change notification available
> ----
> So, the basic questions are:
> - had you compiled-in/kldloaded the ucom module?
> - do you have ucom-related messages in dmesg?
> - you might also need modules 'uplcom' and/or 'umodem' -- try them.


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