MMKernelDevice ID_USB_INTERFACE_NUM property isn't set anymore

[Aleksander Morgado]

On Wed, May 3, 2017 at 5:08 PM, Dan Williams <dcbw at redhat.com> wrote:
>> > > Do you have a /lib/udev/rules.d/60-serial.rules in your system
>> > > that
>> > > sets ID_USB_INTERFACE_NUM? Maybe we shouldn't rely on having
>> > > that?
>> > >
>> >
>> > No, I do not have that 60-serial.rules file, but I did obtained the
>> > result I
>> > wanted adding the following rule to 77-mm-telit-port-types.rules
>> >
>> > SUBSYSTEMS=="usb", ATTRS{bInterfaceNumber}=="?*",
>> > ENV{ID_USB_INTERFACE_NUM}="$attr{bInterfaceNumber}"
>>
>> We need to fix this; we shouldn't be relying on a systemd property. I
>> originally thought this was provided by udev itself... although with
>> the systemd/udev development being done together, it may actually be
>> a
>> packaging decision; no idea.
>
> I think it originally was a udev property.  And I see it's still
> provided by systemd-udev, so I'd expect it to be present if udev is
> installed...

In my Arch system, it looks like it's the "systemd" package is the one
installing that file.

-- 
Aleksander
https://aleksander.es