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From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 9 Jun 2017 11:17:36 +0200
Message-ID: <CACRpkdZB3GgM8b9JSTMD6pKRO3wejOqDHjuLOEZw8Ugknx7NaQ@mail.gmail.com>
Subject: Re: [PATCH/RFC] iio: hi8435: do not enable all events by default
To: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Cc: Jonathan Cameron <jic23@kernel.org>, Hartmut Knaack <knaack.h@gmx.de>,
        Lars-Peter Clausen <lars@metafoo.de>,
        Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
        Sanchayan Maity <maitysanchayan@gmail.com>,
        Gregor Boirie <gregor.boirie@parrot.com>,
        Matt Ranostay <mranostay@gmail.com>,
        "linux-iio@vger.kernel.org" <linux-iio@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Chris Healy <Chris.Healy@zii.aero>, Jeff White <Jeff.White@zii.aero>,
        Vladimir Barinov <vladimir.barinov@cogentembedded.com>
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On Mon, May 29, 2017 at 7:40 AM, Nikita Yushchenko
<nikita.yoush@cogentembedded.com> wrote:

> They originally wanted gpio-style access to use with userspace
> polling, and were not pleased with entire IIO thing.

The GPIO userspace ABI supports events with timestamps.
tools/gpio/gpio-event-mon.c

Yours,
Linus Walleij