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SubjectRe: [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.

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