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

From: Krzysztof Kozlowski
Date: Mon Apr 27 2015 - 23:43:35 EST

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


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,

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