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Changing the gpio(4) API/ABI

To: "tech-kern%netbsd.org@localhost Kernel" <tech-kern%NetBSD.org@localhost>
Subject: Changing the gpio(4) API/ABI
From: Marc Balmer <marc%msys.ch@localhost>
Date: Fri, 23 Sep 2011 12:38:13 +0200

With gpio(4) we still carry an old API with us, which I want to remove.  While 
working on it, I will also introduce a third locator to device drivers that 
attach to gpio pins, flags.  It will be needed for e.g. gpioiic(4) to invert 
the SDA/SCL pin numbers.

WIll documenting the changes be enough?

Follow-Ups:
- Re: Changing the gpio(4) API/ABI
  - From: Matthew Mondor
- Re: Changing the gpio(4) API/ABI
  - From: Marc Balmer

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