Functionality overlap between udev's modem-modeswitch and usb-modeswitch about 19d2:2000

Functionality overlap between udev's modem-modeswitch and usb-modeswitch about 19d2:2000

[Didier 'OdyX' Raboud]

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Hi udev upstreams !

(please keep me and the Debian bug CC'ed).

I am the Debian maintainer for usb-modeswitch and I got a user reporting that 
his 3G dongle was not "switched" anymore [0]. After some investigation, I 
strongly suspect that udev's modem-modeswitch and usb-modeswitch have a 
conflicting functionality overlap.

From /lib/udev/rules.d/61-mobile-action.rules :

> # modem-modeswitch does not work with these devices, the fake CD-ROM needs to 
be ejected
> 
> # ZTE MF6xx
> ACTION=="add", ENV{ID_CDROM}=="1", ENV{ID_VENDOR_ID}=="19d2", 
ENV{ID_MODEL_ID}=="2000", RUN+="/usr/bin/eject %k"

From /lib/udev/rules.d/40-usb_modeswitch.rules :

> # ZTE devices
> ATTRS{idVendor}=="19d2", ATTRS{idProduct}=="2000", RUN+="usb_modeswitch 
'%b/%k'"

It seems (to me) that those lines should be removed from udev (as usb-modeswitch 
provides a generic switching facility for more than "just" 19d2:2000.

What is your opinion thereabout ?

Thanks in advance and best regards, 

OdyX



[0] http://bugs.debian.org/574270
-- 
Didier Raboud, proud Debian Maintainer (DM).
CH-1020 Renens
didier@raboud.com

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Re: Functionality overlap between udev's modem-modeswitch and

[Kay Sievers]

On Thu, Mar 18, 2010 at 17:48, Didier 'OdyX' Raboud <didier@raboud.com> wrote:
> Hi udev upstreams !
>
> (please keep me and the Debian bug CC'ed).
>
> I am the Debian maintainer for usb-modeswitch and I got a user reporting that
> his 3G dongle was not "switched" anymore [0]. After some investigation, I
> strongly suspect that udev's modem-modeswitch and usb-modeswitch have a
> conflicting functionality overlap.
>
> From /lib/udev/rules.d/61-mobile-action.rules :
>
>> # modem-modeswitch does not work with these devices, the fake CD-ROM needs to
> be ejected
>>
>> # ZTE MF6xx
>> ACTION="add", ENV{ID_CDROM}="1", ENV{ID_VENDOR_ID}="19d2",
> ENV{ID_MODEL_ID}="2000", RUN+="/usr/bin/eject %k"
>
> From /lib/udev/rules.d/40-usb_modeswitch.rules :
>
>> # ZTE devices
>> ATTRS{idVendor}="19d2", ATTRS{idProduct}="2000", RUN+="usb_modeswitch
> '%b/%k'"
>
> It seems (to me) that those lines should be removed from udev (as usb-modeswitch
> provides a generic switching facility for more than "just" 19d2:2000.
>
> What is your opinion thereabout ?

If Dan has no objections, we are ready to delete modem-modeswitch from
the udev tree.

Kay

Re: Functionality overlap between udev's modem-modeswitch and

[Dan Williams]

On Thu, 2010-03-18 at 18:16 +0100, Kay Sievers wrote:
> On Thu, Mar 18, 2010 at 17:48, Didier 'OdyX' Raboud <didier@raboud.com> wrote:
> > Hi udev upstreams !
> >
> > (please keep me and the Debian bug CC'ed).
> >
> > I am the Debian maintainer for usb-modeswitch and I got a user reporting that
> > his 3G dongle was not "switched" anymore [0]. After some investigation, I
> > strongly suspect that udev's modem-modeswitch and usb-modeswitch have a
> > conflicting functionality overlap.
> >
> > From /lib/udev/rules.d/61-mobile-action.rules :
> >
> >> # modem-modeswitch does not work with these devices, the fake CD-ROM needs to
> > be ejected
> >>
> >> # ZTE MF6xx
> >> ACTION="add", ENV{ID_CDROM}="1", ENV{ID_VENDOR_ID}="19d2",
> > ENV{ID_MODEL_ID}="2000", RUN+="/usr/bin/eject %k"
> >
> > From /lib/udev/rules.d/40-usb_modeswitch.rules :
> >
> >> # ZTE devices
> >> ATTRS{idVendor}="19d2", ATTRS{idProduct}="2000", RUN+="usb_modeswitch
> > '%b/%k'"
> >
> > It seems (to me) that those lines should be removed from udev (as usb-modeswitch
> > provides a generic switching facility for more than "just" 19d2:2000.
> >
> > What is your opinion thereabout ?

People seem to have a hard time understanding that "Mobile Action" and
"Option" are not the companies as ZTE and Huawei, unfortunately.  I
don't really understand that.

However, some of that confusion comes from having duplicate mode
switching tools.

> If Dan has no objections, we are ready to delete modem-modeswitch from
> the udev tree.

usb_modeswitch still doesn't do the Mobile Action cable stuff.  So I'll
spin modem-modeswitch into a standalone tool that *only* switches the
mobile action cables.  Then we can remove the confusion and just use
usb_modeswitch.

Dan