FYI,
jonnor.com/2010/08/determining-physical-topology-of-hotplugged-usb-devices-with-udev/
Ie, figure out your physical setup and write a script. If programming isn't
your thing, you could probably get this done with sed / awk or maybe even
grep. Though this sounds harder to me than writing a simple perl script.
On Jul 16, 2011 10:12 AM, "shawn wilson" <ag4ve...@gmail.com> wrote:
> On Jul 16, 2011 8:00 AM, "Camaleón" <noela...@gmail.com> wrote:
>>
>> On Thu, 14 Jul 2011 20:59:24 +0200, Tuxoholic wrote:
>>
>> >> Von: Camaleón <noela...@xxxxx.xxx>
>> >>> What do you mean ? - SYMLINK+="webcam%n" ? I tried that, didn't help.
>> >>Nope.
>> >>
>> >>I wanted to know why you used Name="video%n" instead Name="video1" and
>> >>Name="video2" in two separate rules/lines.
>> >
>> > I see your point, so I tried this:
>>
>> (...)
>>
>> > SUBSYSTEM=="video4linux", ATTRS{idVendor}=="046d",
> ATTRS{idProduct}=="08a2", Name="video1", GROUP="video"
>> ^^^^
> ^^^^
>> > SUBSYSTEM=="video4linux", ATTRS{idVendor}=="046d",
> ATTRS{idProduct}=="08a2", Name="video2", GROUP="video"
>> ^^^^
> ^^^^
>>
>> (...)
>>
>> Mmm... How are those rules going to work? :-?
>>
>> You are using the same "idVendor" and "idProduct" for both Logitech
> cameras,
>> I think you need to find an udev attribute that is "unique" for each of
> them
>> and then use it to filter by that field.
>>
>
> I agree. I'd start with looking at what lsusb says. IIRC, there should be
> some sort of uid for each device. Check the specs on the usb group's web
> site (usb.org?) but really that doesn't matter if it says the manufacturer
> didn't follow spec - again lsusb will show you quick enough.
>
> However, I think there's a way to name devices based on the port they're
> plugged into.
