linux-kernel - Re: [RFC/PATCH v6 09/12] media: Entity locking and pipeline management

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20101125135351.GD24208@opensource.wolfsonmicro.com>
Date:	Thu, 25 Nov 2010 13:53:51 +0000
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc:	linux-media@...r.kernel.org, linux-omap@...r.kernel.org,
	linux-kernel@...r.kernel.org, lrg@...mlogic.co.uk,
	sakari.ailus@...well.research.nokia.com, lennart@...ttering.net
Subject: Re: [RFC/PATCH v6 09/12] media: Entity locking and pipeline
 management

On Thu, Nov 25, 2010 at 03:28:16AM +0100, Laurent Pinchart wrote:
> Link states must not be modified while streaming is in progress on a
> graph they belong or connect to. The entity locking API helps drivers
> enforcing that requirement.

This is not desirable for embedded audio - for example, it is very
common to wish to switch from headphone to speaker and back mid
playback, or to move between headset, speakerphone and handset modes on
a phone.  This is normally implemented by reconfiguring the output paths
at runtime without interrupting applications.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/