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From: Paul Brook <paul@codesourcery.com>
Subject: Re: [Qemu-devel] [PATCH 0/5] qdev: add driver class support.
Date: Thu, 9 Jul 2009 14:19:10 +0100
References: <1247144544-8885-1-git-send-email-kraxel@redhat.com>
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To: qemu-devel@nongnu.org
Cc: Gerd Hoffmann <kraxel@redhat.com>

On Thursday 09 July 2009, Gerd Hoffmann wrote:
>   Hi,
>
> This patch series brings driver classes to qdev.
>
> DeviceInfo gets a new field specifying what kind of device this is.
> For starters there are Sound cards and Network cards.  The number
> of device classes will probably grow over time.
>
> The device class will be shown in the listing printed by '-device ?', so
> users and management apps can figure what kinds of -- say -- network
> cards are supported by that particular qemu binary.

I'm not sure this is a good idea. You should be able to figure it out from the 
device properties. Plus there's no reason why a device can't implement 
multiple "classes" of device.

Paul