[alsa-devel] [PATCH 1/3] ASoC: jack: Add a jack detect callback via codec

[Mark Brown]

On Mon, Apr 18, 2016 at 04:17:30PM +0800, Xing Zheng wrote:
> This patch add a callback when a codec have the jack detect feature.

> +void snd_soc_jack_codec_detect(struct snd_soc_codec *codec,
> +				struct snd_soc_jack *jack)
> +{
> +	if (codec && codec->driver && codec->driver->detect_jack)
> +		codec->driver->detect_jack(codec, jack);
> +}
> +EXPORT_SYMBOL_GPL(snd_soc_jack_codec_detect);

I've no idea what this is supposed to do sorry, you need a much better
changelog and probably also a restructuring of the code.  This says it
is adding a callback but it doesn't do that, it adds an export of a
function that calls an operation in a driver with no explanation.
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