77-mm-usb-device-blacklist.rules - allow blacklisting various devices

Aleksander Morgado aleksander at aleksander.es
Mon Sep 15 02:27:54 PDT 2014


On Mon, Sep 8, 2014 at 7:02 PM, Dan Williams <dcbw at redhat.com> wrote:
> On Sat, 2014-09-06 at 21:06 +0200, Aleksander Morgado wrote:
>> On Fri, Sep 5, 2014 at 8:40 PM, Dan Williams <dcbw at redhat.com> wrote:
>> > On Fri, 2014-09-05 at 09:58 +0200, Aleksander Morgado wrote:
>> >> On Fri, Sep 5, 2014 at 9:45 AM, poma <pomidorabelisima at gmail.com> wrote:
>> >> > Probably now you can fully understand why I proposed
>> >> > +# Conexant Systems (Rockwell), Inc. USB Modem (TRENDnet TFM-561U 56K USB Modem)
>> >> > +ATTRS{idVendor}=="0572", ATTRS{idProduct}=="1329", ENV{ID_MM_DEVICE_IGNORE}="1"
>> >>
>> >> Yeah; but I would keep those in a separate list, in case we end up
>> >> working in the POTS modems some day.
>> >>
>> >> Dan what do you think?
>> >
>> > If we do start blacklisting POTS modems, then we've got the problem of
>> > what happens when somebody with POTS modems upgrades to a version of MM
>> > that actually supports them.  We have three choices I think:
>> >
>> > 1) blacklist POTS modems now, and make POTS support opt-in via some kind
>> > of configuration when we support it; we could encourage distros to put
>> > the blacklist in a separate package that could be un-installed to get
>> > POTS support.  I think this is probably the best option for now, it
>> > makes sure that upgrades don't radically change how things work.
>> >
>> > 2) blacklist POTS modems now, and don't care about the upgrade issue in
>> > the future; easiest thing to do but  not the nicest move if we ever get
>> > POTS support
>> >
>> > 3) do as now and still probe POTS modems; this doesn't seem quite right
>> > because we don't pretend to support POTS now
>> >
>> > So TLDR; I think option #1 is the best for now.  Other thoughts?
>>
>>
>> How about using another tag for POTS devices, not the default IGNORE
>> one? We could have a ID_MM_POTS or something. If we don't have POTS
>> support, modems with that tag would be ignored, and once we have
>> support for them, we could directly re-use the tag to start supporting
>> them.
>
> That's a good idea.
>

Poma, does the attached patch work for you?


-- 
Aleksander
https://aleksander.es
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