tree ad2c98f91e1ce5c97e55932ec56b33ec2402b7c4
parent 06efce71166b222b6715c73700f5e9b228d68999
author Bjørn Mork <bjorn@mork.no> 1372500186 +0200
committer David S. Miller <davem@davemloft.net> 1372754861 -0700

net: cdc_ether: allow combined control and data interface

Some Icera based Huawei modems handled by this driver are not
completely CDC ECM compliant, using the same USB interface for both
control and data. The CDC functional descriptors include a Union
naming this interface as both master and slave, so it is supportable
by relaxing the descriptor parsing in case these interfaces are
identical.

This has been tested on a Huawei K3806 and verified to add support
for that device.

Reported-and-tested-by: Enrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: David S. Miller <davem@davemloft.net>