Technicalities » jack http://www.sirena.org.uk/log Just another random blog Fri, 16 Jul 2010 17:24:50 +0000 en hourly 1 http://wordpress.org/?v=3.0 ASoC changes in 2.6.30 http://www.sirena.org.uk/log/2009/06/10/asoc-changes-in-2630/ http://www.sirena.org.uk/log/2009/06/10/asoc-changes-in-2630/#comments Wed, 10 Jun 2009 08:31:00 +0000 Mark Brown http://www.sirena.org.uk/log/?p=174 Linux 2.6.30 was released today. This has been a fairly quiet release from the ASoC point of view with no substantial API changes for drivers but there’s a few new interfaces which people may find helpful. Highlights include:

  • A simple wrapper for the standard ALSA jack detection interface. This helps makes jacks a bit easier to use in a multi-component system, providing a framework for using multiple jack detection methods on a single jack (eg, for both headphone and microphone) and automatic integration with DAPM, allowing output paths to be powered up only when a jack is present. See sound/soc/soc-jack.c.
  • A new SND_SOC_DAPM_PIN_SWITCH helper for machines exposing control of DAPM pins to user applications.
  • More conversion of ASoC CODEC drivers to use the new device model integrated driver registration methods.
  • TI DaVinci support now works in mainline, no out of tree patches are required for the DMA code.

plus a selection of new drivers and enhancements to existing drivers..

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