linux-kernel - Re: [RFC PATCH 17/17] input: RMI4 F54 analog data reporting

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Message-ID: <CACRpkdYNUNmbMinzAth4ZBUojgTuKCvf1msuvDy3EK_3aQ9vRg@mail.gmail.com>
Date:	Mon, 27 Aug 2012 16:01:52 -0700
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Christopher Heiny <cheiny@...aptics.com>
Cc:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Jean Delvare <khali@...ux-fr.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Linux Input <linux-input@...r.kernel.org>,
	Allie Xiong <axiong@...aptics.com>,
	William Manson <wmanson@...aptics.com>,
	Peichen Chang <peichen.chang@...aptics.com>,
	Joerie de Gram <j.de.gram@...il.com>,
	Wolfram Sang <w.sang@...gutronix.de>,
	Mathieu Poirier <mathieu.poirier@...aro.org>,
	Linus Walleij <linus.walleij@...ricsson.com>,
	Naveen Kumar Gaddipati <naveen.gaddipati@...ricsson.com>,
	Jonathan Cameron <jic23@....ac.uk>
Subject: Re: [RFC PATCH 17/17] input: RMI4 F54 analog data reporting

On Fri, Aug 17, 2012 at 3:17 PM, Christopher Heiny <cheiny@...aptics.com> wrote:

Verbose commit message.

> Signed-off-by: Christopher Heiny <cheiny@...aptics.com>

> +#include <linux/hrtimer.h>
> +#include <linux/kernel.h>
> +#include <linux/rmi.h>
> +#include <linux/slab.h>
> +#include <linux/version.h>
> +#include <linux/delay.h>

This is not using the existing in-kernel framework for ADC (which I think is
what you're doing), in this case use the IIO subsystem so consult
drivers/iio/adc and be inspired.

Just exposing a set of weird sysfs files to userspace is not proper.

Yours,
Linus Walleij
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