netdev - usbnet devices with several in/out endpoints

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Date:	Fri, 20 Feb 2015 10:10:59 +0100
From:	Shahin Ghazinouri <shahin.ghazinouri@...il.com>
To:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: usbnet devices with several in/out endpoints

I'm developing a driver for a USB network device that filters received
network packets into two separate USB IN endpoints. This means a
second rx urb has to be allocated and submitted.

Right now, the implementation relies on patching usbnet.c, so that a
second urb is allocated and a new function "rx_submit_fixup" is called
in the device driver. This function is a copy of rx_submit, except it
submits an urb to receive data from the second endpoint.

Would it be feasible to modify the current usbnet framework to support
devices with several endpoints?

Kind regards,
Shahin
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