[alsa-devel] [PATCH 1/2] ASoC: Initial WM8996 headphone impedance measurement support

[Girdwood, Liam]

On 17 September 2011 14:14, Mark Brown
<broonie at opensource.wolfsonmicro.com>wrote:

> The WM8996 can measure the impedance of accessories connected to the
> headphone output. Implement initial support for this, measuring the
> left channel impedance when an accessory is detected and using this
> to distinguish between a line load and a headphone load.
>
> Signed-off-by: Mark Brown <broonie at opensource.wolfsonmicro.com>
> ---
>  sound/soc/codecs/wm8996.c |  137
> ++++++++++++++++++++++++++++++++++++--------
>  1 files changed, 112 insertions(+), 25 deletions(-)
>
>
Both

Acked-by: Liam Girdwood <lrg at ti.com>