Re: [PATCH V1 2/3] Documentation: gpio: Add details of open-drain configuration

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On Thu, Feb 16, 2012 at 9:28 AM, Laxman Dewangan <ldewangan@xxxxxxxxxx> wrote:

> Yes, I can add the open source also but like to be in incremental change.
> Not together with open drain.
> We can go with:
> - open drain core driver support.
> - open drain sysfs interface support
> - open source core driver support
> - open source sysfs interface.
>
> I have already changes for the first 2 which we can review/apply,
> Meanwhile I will work on open source support.
>
> Does it look good?

Well as a patch concept it is OK but I have real bad feelings about
patch  [2/4] and [4/4] adding sysfs.

What the GPIO subsystem really needs is to get rid of sysfs
interfaces, have them deprecated and replaced with a
per-gpiochip /dev/gpioN with ioctl()s or similar instead. The sysfs
interface is just ... it won't scale.

Yours,
Linus Walleij
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