linux-kernel - Re: [virtio-dev] Re: [PATCH v3] Add virtio-input driver.

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Date:	Tue, 24 Mar 2015 14:37:24 +0100
From:	Gerd Hoffmann <kraxel@...hat.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	virtio-dev@...ts.oasis-open.org,
	virtualization@...ts.linux-foundation.org,
	David Herrmann <dh.herrmann@...il.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	open list <linux-kernel@...r.kernel.org>,
	"open list:ABI/API" <linux-api@...r.kernel.org>
Subject: Re: [virtio-dev] Re: [PATCH v3] Add virtio-input driver.

  Hi,

> > input layer checks it and ignores events not supported (according to the
> > support bitmaps).
> 
> Right but support bitmaps come from host too, no?

Yes, but the driver will not set invalid bits (bitcount argument for the
virtinput_cfg_bits() function is the number of valid bits of the
specific bitmap).

cheers,
  Gerd




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