linux-kernel - Re: [PATCH 0/4] extcon: Modify the name of unused external connector

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Date:	Tue, 28 Apr 2015 12:43:15 +0900
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Chanwoo Choi <cw00.choi@...sung.com>, linux-kernel@...r.kernel.org
Cc:	jaewon02.kim@...sung.com, myungjoo.ham@...sung.com,
	kyungmin.park@...sung.com
Subject: Re: [PATCH 0/4] extcon: Modify the name of unused external connector

On 27.04.2015 21:31, Chanwoo Choi wrote:
> This patchset alter the unused name of external connector (jig/dock/MHL) as
> following. The name of jig cable and dock device include the non-standard H/W
> information. On user-space side, this information are not necessary. The extcon
> core will support the other method to inform the specific H/W information to
> kernel device driver and framework. For example, extcon core have the plan to add
> the notifier chain for USB ID/VBUS pin state. If extcon consumer (kernel device
> driver and framework) use the notifer chain for USB ID/VBUS, they can get the
> state of both JIG and USB when JIG-USB-ON cable is attached.
>
> And last patch removes the unused 'num_cables' filed on extcon-adc-jack.c.
>
> 1. jig cable name
> - JIG-USB-ON   -->|
> - JIG-USB-OFF  -->|
> - JIG-UART-ON  -->|
> - JIG-UART-OFF -->|--> JIG
>
> 2. dock device name
> - Dock-Smart   -->|
> - Dock-Desk    -->|
> - Dock-Audio   -->|
> - Dock-Card    -->|--> DOCK
>
> 3. MHL-TA cable name
> - MHL-TA -> TA

Hi,

That makes sense but isn't such change a break of interface with 
user-space? The user-space may expect Dock-xxx for Dock.

Best regards,
Krzysztof

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