Re: Stopping modemmanager from auto probing?

[Torsten Spindler <torsten canonical com>]

Hello,

Alex and I have submitted a patch for the blacklisting in ModemManager
in this bug report:
https://bugzilla.gnome.org/show_bug.cgi?id=608022

If you have some time, can you please let us know if it can be included.
Is there anything else we can do to move this forward?

Regards,
Torsten


On Fri, 2010-01-22 at 14:42 -0800, Dan Williams wrote:
> On Fri, 2010-01-22 at 11:49 +0100, Torsten Spindler wrote:
> > Hello,
> > 
> > there seems to be a problem for some devices which modemmanager probes
> > over the serial line. Namely Palm devices [1] and a Smart Card reader
> > [2]. Is there any possibility to make the probing configurable?
> > 
> > There seems to be a work around available by removing 
> > /usr/lib/ModemManager/libmm-plugin-generic.so. This seems to prevent
> > modemmanager from doing the autoprobing.
> 
> If there are certain devices that are known to handle probing badly,
> then we can probably blacklist those.  We did that for a few devices
> with NM 0.7.x but that did not get carried over to ModemManager.  We
> would however need to get unique identifiers for those devices like USB
> vid/pid.  Serial devices are harder since legacy serial ports don't
> really have identifying information.  Be aware that PCMCIA-based cards
> (like the Sierra 860) will report as ttyS0 using the "serial" driver and
> thus aren't very distinguishable from legacy serial ports either.  Needs
> a bit of investigation.
> 
> when you get a bug like this, try getting the user to (1) stop NM and
> MM, (2) plug the device in, and (3) run the "lsudev" utility included in
> the modem-manager sources in test/ like so:
> 
> sudo lsudev tty
> 
> and then hit Ctrl+C and get the log into gnome bugzilla.  If we get
> enough logs we can see if there's a good way to handle legacy serial
> ports.  If the devices are USB, then that's quite a bit easier.
> 
> Dan
> 
>