linux-kernel - Re: [PATCH] USB: Gadget: g_multi: added INF file for gadget with multiple configurations

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Message-ID: <87sk2i45es.fsf@erwin.mina86.com>
Date:	Fri, 13 Aug 2010 22:35:39 +0200
From:	Michal Nazarewicz <mina86@...a86.com>
To:	Xiaofan Chen <xiaofanc@...il.com>
Cc:	Dries Van Puymbroeck <dries.van.puymbroeck@...il.com>,
	linux-usb@...r.kernel.org, Greg KH <greg@...ah.com>,
	Michał Nazarewicz 
	<m.nazarewicz@...sung.com>,
	Dries Van Puymbroeck <dries.vanpuymbroeck@...imo.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] USB: Gadget: g_multi: added INF file for gadget with multiple configurations

Xiaofan Chen <xiaofanc@...il.com> writes:

> On Fri, Aug 13, 2010 at 5:31 PM, Dries Van Puymbroeck
> <dries.van.puymbroeck@...il.com> wrote:
>> When a mutlifunction gadget has more than 1 configuration, Windows does not
>> use its generic driver for multifunctional USB devices.
>
> Sorry but what do you mean by the above?
> As per the previous discussions, it seems that a registry entry hack
> (for Vista and Windows 7) is needed.
> http://msdn.microsoft.com/en-us/library/ff538059%28VS.85%29.aspx
>
>> This commit adds an INF file that will load the required Windows driver
>> as well as a short description in gadget_multi.txt
>
> It seems to me your inf file forces the USB Generic
> Parent Driver (for USB Composite Device) to load. But for which
> configuration? I do not have any device to test myself. But
> I tend to guess it will still be the first configuration (either
> RNDIS or CDC ECM).

2-configuration g_multi has configuration with RNDIS as the first one so
that's pretty perfect for us.

-- 
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 ..o | Computer Science,  Michal "mina86" Nazarewicz   (o o)
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