Re: [PATCH 1/6] extcon: Add the extcon_type to group each connector into five category

[Chanwoo Choi <cw00.choi@samsung.com>]

Hi Myungjoo,

On 2016년 07월 27일 13:27, MyungJoo Ham wrote:
>> This patch adds the new extcon type to group the each connecotr
>> into following five category. This type would be used to handle
>> the connectors as a group unit instead of a connector unit.
>> - EXTCON_TYPE_USB  : USB connector
>> - EXTCON_TYPE_CHG  : Charger connector
>> - EXTCON_TYPE_JACK : Jack connector
> 
> "Jack" seems to be an internal jargon that many people won't recognize.
> It's, in fact, 3.5-pi, isn't it?

You're right. But, the ALSA framework already used the 'jack' word
for headphone/headset/microphone for a long time. (sound/soc/soc-jack.c)
So, To prevent the confusion, I use the 'jack' word.

> 
> Anyway, this is already being used as an enum with drivers,
> I'd suggest to add a comment in extcon.h stating that 
> "Jack connector" is usually the 3.5-pi earbud connector.

Additionally,  jack means the the LINE_IN/OUT, VIDEO_IN/OUT,
SPDIF_IN/OUT in the extcon.

> 
> Anyway, I like the direction of this patch.

Thanks.

> 
> 
> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>

Regards,
Chanwoo Choi

> 
> Cheers,
> MyungJoo
> 
>> --- a/include/linux/extcon.h
>> +++ b/include/linux/extcon.h
>> @@ -29,6 +29,15 @@
>>  #include <linux/device.h>
>>  
>>  /*
>> + * Define the type of supported external connectors
>> + */
>> +#define EXTCON_TYPE_USB		BIT(0)	/* USB connector */
>> +#define EXTCON_TYPE_CHG		BIT(1)	/* Charger connector */
>> +#define EXTCON_TYPE_JACK	BIT(2)	/* Jack connector */
> +                                /* Usually, this is a 3.5-pi earbud conector */
>> +#define EXTCON_TYPE_DISP	BIT(3)	/* Display connector */
>> +#define EXTCON_TYPE_MISC	BIT(4)	/* Miscellaneous connector */
>> +
>> +/*
>>   * Define the unique id of supported external connectors
>>   */
>>  #define EXTCON_NONE		0
>> -- 
>> 1.9.1
>>