linux-kernel - Re: [PATCH 01/19] bh1770glc: added input device interface

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Date:	Mon, 17 Jun 2013 16:55:27 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	Andi Shyti <andi@...zian.org>
Cc:	arnd@...db.de, linux-kernel@...r.kernel.org, pc@...f.org,
	oatilla@...il.com
Subject: Re: [PATCH 01/19] bh1770glc: added input device interface

On Tue, Jun 18, 2013 at 01:54:26AM +0200, Andi Shyti wrote:
> > > > > The driver generates an event in /dev/input/ under the name
> > > > > 'bh1770'. It's a switch event where is reported '0' or '1'
> > > > > whenever the sensor detects something crossing the threshold.
> > > > > 
> > > > Doesn't this mean that this driver is now an "input" driver, so it
> > > > shouldn't be using the odd sysfs api, and should move to the
> > > > drivers/input/ directory tree?
> > > 
> > > The driver has also lots of interfaces in
> > > sysfs that are used from userspace, like proximity value and
> > > ambient light value.
> > > 
> > > What the input interface provides is just one of the features
> > > from the driver. Shall I move it anyway?
> > 
> > Hm, why not make it an iio driver instead?  That way you get input and
> > sysfs all together.
> 
> I'll do my best to get the hardware I need, then, so that once I
> do it I'll do it fully correct :)
> 
> Then, just ignore this patches and I'll come later with a new
> patchset.
> 
> But I still wonder: this is a combined proximity/ambient light
> sensor, where exactly should I move it? Is it correct to create a
> new directory for combined sensors?

Ask the iio developers, they will know best here.

thanks,

greg k-h
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