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

[Xing Zheng]

HI Mark,

On 2016年04月18日 17:53, Mark Brown wrote:
> On Mon, Apr 18, 2016 at 05:43:51PM +0800, Xing Zheng wrote:
>
>> The patch_1/3 add an export of a function that calls the _detect_jack_
>> function
>> when a codec supports jack detection and fill the _detect_jack_ function in
>> the
>> struct snd_soc_codec_driver.
> But why would anything ever call this function?  How is this supposed to
> be used?
In my opinion, this function is mainly to provide simple-card (patch_2/3).

This function will call and initialize jack detection if a codec 
supports it and fill the detect_jack function (patch_3/3 use it),
and, we don't need to create a customized machine driver to call the 
codec jack detection, the simple-card is able to
parse them.

Thanks.

-- 
- Xing Zheng