Re: [PATCH 0/0] option: updates and additions for QCDM-capable device ports

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On Wed, 2010-02-17 at 09:57 -0800, Greg KH wrote:
> On Tue, Feb 16, 2010 at 10:36:21PM -0800, Dan Williams wrote:
> > On Tue, 2010-02-16 at 20:54 -0800, Greg KH wrote:
> > > On Tue, Feb 16, 2010 at 06:39:26PM -0800, Dan Williams wrote:
> > > > Hi,
> > > > 
> > > > This short series adds some device IDs for CDMA/EVDO devices that are
> > > > normally driven by CDC-ACM, but also provide an additional serial port
> > > > that talks a proprietary Qualcomm protocol, QCDM.  We now know enough of
> > > > QCDM to start using these ports for radio status and signal strength
> > > > when the CDC-ACM port is being used for PPP.
> > > 
> > > Great, but how are we going to keep these devices from binding to the
> > > cdc-acm module if it is loaded first?  Do we need to blacklist them in
> > > that driver at the same time?
> > 
> > I don't think we care.  The CDC-ACM part will be driven by cdc-acm, and
> > the QCDM part gets driven by option.ko in parallel with the CDC-ACM.
> > With these patches applied, you have both /dev/ttyACM0 (AT capable)
> > and /dev/ttyUSB0 (QCDM capable).  Somewhat like how the Ericsson "mbm"
> > modems are concurrently driven by the cdc-wdm, cdc-ether, and cdc-acm
> > class drivers all at the same time.
> 
> Ah, ok, that makes sense.  I'll go queue up the patches in a few hours.

Actually just keep #1, but drop 2 - 4.  I'll follow Oliver's suggestion
and do a smaller moto-modem-like driver for QCDM ports on these devices.

Dan


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