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Message-Id: <201011251647.45488.laurent.pinchart@ideasonboard.com> Date: Thu, 25 Nov 2010 16:47:44 +0100 From: Laurent Pinchart <laurent.pinchart@...asonboard.com> To: Mark Brown <broonie@...nsource.wolfsonmicro.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 Hi Mark, On Thursday 25 November 2010 14:53:51 Mark Brown wrote: > 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. Agreed. The locking should be made optional. I'll work on that. -- Regards, Laurent Pinchart -- 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/
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