broonie's blog

A Linux driver for the WM8728, a high performance stereo DAC designed for audio applications such as DVD, home theatre systems and digital TV, has been released. The driver can be obtained from our ASoC repository

Version 2.6.27 of the Linux kernel was released yesterday. This release introduces drivers for the WM8510 and WM8990 as well as enhancements to existing drivers, particularly the WM9713.

An initial Linux driver for the WM8903 audio CODEC has been released. The driver can be obtained via our ASoC repository.

Linux 2.6.26 integrates a large number of changes to the ASoC subsystem, including:

• Support for TI OMAP processors from 1510 to 2040.
• Support for TI DaVinci processors.
• Support for the AC97 controller on PXA 3xx processors.

along with numerous updates to codec drivers, improvements to diagnostic output and updates to reflect current kernel coding standards.

A Linux driver supporting the core functionality of the WM8580 audio CODEC has been released in the ASoC repository.

Linux version 2.6.25 integrates a number of updates to the ALSA System on Chip subsystem. Among the changes integrated are:

• Support for the Freescale MPC8610 SoC
• Support for IIS on the Samsung S3C2412 SoC
• Support for TLV controls, allowing the use of dB scales by applications

Linux support for the AC97 controller provided by the Marvel PXA3xx SoC processors has now been added to version 1 of the ASoC drivers and also to the non-ASoC PXA AC97 driver. Updated versions of these drivers are available from the dev branch ASoC git tree and the changes are intended for merge into Linux 2.6.26.

An ASoC-based Linux driver for the WM8900 CODEC with Class G Headphone Driver is now available from the ALSA System on a Chip repository. Features supported by this driver include:

• Full analogue and digital path support
• DAPM integration for minimal power consumption
• Automatic FLL configuration from the full range of supported input frequencies