linux-kernel - Re: [PATCH 1/2] extcon: Use the unique id for external connector instead of string

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Date:	Tue, 19 May 2015 21:28:06 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	cw00.choi@...sung.com,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Cc:	Chanwoo Choi <cwchoi00@...il.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	"myungjoo.ham@...sung.com" <myungjoo.ham@...sung.com>,
	Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>,
	gg@...mlogic.co.uk, Kishon Vijay Abraham I <kishon@...com>,
	jaewon02.kim@...sung.com, Roger Quadros <rogerq@...com>,
	"Pallala, Ramakrishna" <ramakrishna.pallala@...el.com>,
	george.cherian@...com, Felipe Balbi <balbi@...com>,
	Aaro Koskinen <aaro.koskinen@....fi>
Subject: Re: [PATCH 1/2] extcon: Use the unique id for external connector
 instead of string

Hi Krzysztof,

>>> +
>>> +       if (i == edev->max_supported)
>>> +               return -EINVAL;
>>>
>>>         if (index < 0 || (edev->max_supported && edev->max_supported <= index))
>>>                 return -EINVAL;
>>> @@ -605,7 +644,7 @@ static void dummy_sysfs_dev_release(struct device *dev)
>>>   *
>>>   * Return the pointer of extcon device if success or ERR_PTR(err) if fail
>>>   */
>>> -struct extcon_dev *extcon_dev_allocate(const char **supported_cable)
>>> +struct extcon_dev *extcon_dev_allocate(const enum extcon *supported_cable)
>>
>> I think you also have to update the documentation. At least for
>> {devm}_extcon_dev_allocate but maybe in other places too. Previously
>> the documentation states that supported_cable is an array of strings.
>> Additionally AFAIU now it must end with EXTCON_NONE. This
>> sentinel-like info must be clearly documented.

As you commented, extcon must need to document the update and usage method of extcon core.
The mainline kernel includes only the 'Documentation/extcon/porting-android-switch-class'.
Namely, the mainline kernel have not included the document showing the usage method of extcon core.

So, I'll make the proper document for extcon core as later job.

Thanks,
Chanwoo Choi

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