Re: [PATCH] extcon: Introduce EXTCON_PROP_USB_SUPERSPEED property

From: Guenter Roeck
Date: Wed Aug 17 2016 - 20:41:42 EST


On Wed, Aug 17, 2016 at 5:37 PM, Chanwoo Choi <cw00.choi@xxxxxxxxxxx> wrote:
> Hi Guenter,
>
> How about changing the property name for SuperSpeed as following?
> It is more simple and reduce the length of property name.
> - EXTCON_PROP_USB_SUPERSPEED -> EXTCON_PROP_USB_SS
>
Whatever you prefer is fine.

Thanks,
Guenter

> Regards,
> Chanwoo Choi
>
> On 2016ë 08ì 16ì 10:41, Guenter Roeck wrote:
>> On Mon, Aug 15, 2016 at 5:55 PM, Chanwoo Choi <cw00.choi@xxxxxxxxxxx> wrote:
>>> Hi Guenter,
>>>
>>> Looks good to me.
>>> I'll add the reference[1] information on patch description and applied it.
>>> [1] https://en.wikipedia.org/wiki/USB#Overview
>>>
>>
>> Thanks!
>>
>> Guenter
>>
>>> Thanks,
>>> Chanwoo Choi
>>>
>>> On 2016ë 08ì 15ì 22:15, Guenter Roeck wrote:
>>>> From: Guenter Roeck <groeck@xxxxxxxxxxxx>
>>>>
>>>> EXTCON_PROP_USB_SUPERSPEED is necessary to distinguish between USB/USB2
>>>> and USB3 connections on USB Type-C cables.
>>>>
>>>> Cc: Chris Zhong <zyw@xxxxxxxxxxxxxx>
>>>> Signed-off-by: Guenter Roeck <groeck@xxxxxxxxxxxx>
>>>> ---
>>>> Applies on top of extcon-next.
>>>>
>>>> include/linux/extcon.h | 8 +++++++-
>>>> 1 file changed, 7 insertions(+), 1 deletion(-)
>>>>
>>>> diff --git a/include/linux/extcon.h b/include/linux/extcon.h
>>>> index ad7a1606a7f3..38d2c0dec2c1 100644
>>>> --- a/include/linux/extcon.h
>>>> +++ b/include/linux/extcon.h
>>>> @@ -107,12 +107,18 @@
>>>> * @type: integer (intval)
>>>> * @value: 0 (normal) or 1 (flip)
>>>> * @default: 0 (normal)
>>>> + * - EXTCON_PROP_USB_SUPERSPEED
>>>> + * @type: integer (intval)
>>>> + * @value: 0 (USB/USB2) or 1 (USB3)
>>>> + * @default: 0 (USB/USB2)
>>>> + *
>>>> */
>>>> #define EXTCON_PROP_USB_VBUS 0
>>>> #define EXTCON_PROP_USB_TYPEC_POLARITY 1
>>>> +#define EXTCON_PROP_USB_SUPERSPEED 2
>>>>
>>>> #define EXTCON_PROP_USB_MIN 0
>>>> -#define EXTCON_PROP_USB_MAX 1
>>>> +#define EXTCON_PROP_USB_MAX 2
>>>> #define EXTCON_PROP_USB_CNT (EXTCON_PROP_USB_MAX - EXTCON_PROP_USB_MIN + 1)
>>>>
>>>> /* Properties of EXTCON_TYPE_CHG. */
>>>>
>>>
>>
>>
>>
>