Re: [PATCH 0/6] GPIO character device skeleton

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Tue, Nov 3, 2015 at 9:50 AM, Mark Brown <broonie@xxxxxxxxxx> wrote:
> On Tue, Nov 03, 2015 at 08:39:13AM +0100, Markus Pargmann wrote:
>
>> I think we need real gpio userspace tools for such a chardev interface and not
>> only a library. On the one hand there are all the kernel/userspace developers
>> that just want to test stuff. On the other hand there are really a lot of
>> people that are using small embedded devices (e.g. beaglebone, raspberry pi,
>> ...) for really simple applications like using GPIOs to control something. I am
>> sure many of them are just using some really simple bash code to reach their
>> goals.
>
> There's already some work going on on producing tooling for the maker
> community which is currently working with the existing interfaces,
> attempting to abstract them for users to handle things like base board
> differences - I believe that's part of the motivation behind this work.

You are right. It is adding to the long-term maintenance requirements for
the sysfs ABI which we want to ditch.

Yours,
Linus Walleij
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