linux-kernel - Re: [PATCH] Add STMicroelectronics LPS001WP pressure sensor device driver into misc

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Message-ID: <20110314211809.29da8518@endymion.delvare>
Date:	Mon, 14 Mar 2011 21:18:09 +0100
From:	Jean Delvare <khali@...ux-fr.org>
To:	Jonathan Cameron <jic23@....ac.uk>
Cc:	Arnd Bergmann <arnd@...db.de>,
	mems applications <mems.applications@...com>,
	rdunlap@...otime.net, carmine.iascone@...com, matteo.dameno@...com,
	rubini@...vis.unipv.it, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Guenter Roeck <guenter.roeck@...csson.com>
Subject: Re: [PATCH] Add STMicroelectronics LPS001WP pressure sensor device
  driver into misc

On Mon, 14 Mar 2011 20:14:19 +0000, Jonathan Cameron wrote:
> On 03/14/11 19:46, Arnd Bergmann wrote:
> > On Monday 14 March 2011 20:19:20 Jonathan Cameron wrote:
> >> The big issue raised last time around is that this is not a conventional human
> >> input device.  Hence Dmitry isn't going to take it into input.  That doesn't
> >> just mean that you have to move it's physical location; it also means you have
> >> to not use the input interfaces at all.
> > 
> > How about making this a hwmon driver instead?
> > There are already a number of temperature sensor drivers in
> > driver/hwmon/, I think it would fit in well there.
> hwmon are fairly forceful about not taking things that aren't for monitoring
> hardware.  Even the humidity sensors in there are still controversial.
> As it has been suggested I've cc'd Guenter and Jean just in case I'm wrong on
> this.

Jonathan is correct. Pressure sensors are not hardware monitoring
devices, their drivers have nothing to do in drivers/hwmon. This is
something for drivers/misc or staging/iio.

> > This would mean moving it to the other directory,
> > registering it to the common hwmon api (hwmon_device_register)
> > and rewriting the user API to blend in with the other
> > hwmon drivers.

-- 
Jean Delvare
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