linux-kernel - Re: [spi-devel-general] [Patch 0/4] IndustrialIO subsystem (ADCs, accelerometers etc)

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Message-ID: <4888796B.9070003@cam.ac.uk>
Date:	Thu, 24 Jul 2008 13:45:31 +0100
From:	Jonathan Cameron <jic23@....ac.uk>
To:	Eric Piel <eric.piel@...mplin-utc.net>
CC:	Jonathan Cameron <Jonathan.Cameron@...il.com>,
	mgross@...ux.intel.com, Dmitry Torokhov <dtor@...l.ru>,
	LKML <linux-kernel@...r.kernel.org>,
	LM Sensors <lm-sensors@...sensors.org>,
	David Brownell <david-b@...bell.net>,
	Henrique de Moraes Holschuh <hmh@....eng.br>,
	Jean Delvare <khali@...ux-fr.org>,
	spi-devel-general@...ts.sourceforge.net,
	Ben Nizette <bn@...sdigital.com>
Subject: Re: [spi-devel-general] [Patch 0/4] IndustrialIO subsystem (ADCs,
 accelerometers etc)

hat done for the next
>> version (maybe driver specific for now).
> Yes, on a second though, this is a low priority point. If userspace is
> able to know if the hardware has or not freefall detection, it should be
> possible to just implement the software detection in the userspace
> daemon. People might come up with lots of "clever" algorithms for that,
> so it might be better to not do too much in the kernel ;-)
Good point; will leave that one for now.
 
> 
>>
>> At the moment the big missing element of the subsystem is an easy way of
>> querying what is there. (proc interface similar to that for the input
>> subsystem)
> You mean /sys/class/input/, right? Indeed, something inspired by the
> input subsystem should work well.
No, I meant /proc/bus/input/devices which gives machine readable description
of all devices registered with the input subsystem and their capabilities.

Makes it easier to make userspace code reasonably generic.

--
Jonathan
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