Querying WWAN iface name for each /dev/cdc-wdm device

[Aleksander Morgado]

Hey,

QMI devices are split into /dev/cdc-wdm ports and WWAN net interfaces.
Each /dev/cdc-wdm port is uniquely associated with a given WWAN net
interface. When only one of each is available there's no big issue,
but modems exposing multiple control+net ports are very common
nowadays (e.g. MC7304).

 The 'aleksander/wwan-iface' branch in upstream git allows to query
which is the WWAN interface name for a given QmiDevice, so it allows a
direct association between the /dev/cdc-wdm port and the net
interface.

Also developed a new '--get-wwan-iface' command in qmicli, e.g.:
   $ qmicli -d /dev/cdc-wdm1 --get-wwan-iface
   wwp0s29u1u6i8
   $ qmicli -d /dev/cdc-wdm2 --get-wwan-iface
   wwp0s29u1u6i10

In order to support this, libqmi would now depend on the gudev library.

Comments on this, before merging to git master?

http://cgit.freedesktop.org/libqmi/log/?h=aleksander/wwan-iface

-- 
Aleksander
https://aleksander.es