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Date: Wed, 6 Aug 2014 17:18:23 -0500
From: Felipe Balbi <balbi@ti.com>
To: Peter Meerwald <pmeerw@pmeerw.net>
CC: Felipe Balbi <balbi@ti.com>, <jic23@kernel.org>,
        <linux-iio@vger.kernel.org>
Subject: Re: [RFC/PATCH] iio: light: add support for TI's opt3001 ligth sensor
Message-ID: <20140806221823.GE3556@saruman.home>
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Hi,

On Thu, Aug 07, 2014 at 12:09:36AM +0200, Peter Meerwald wrote:
> > > > +		.scan_type =3D {
> > > > +			.sign =3D 'u',
> > >=20
> > > .realbits / .storagebits missing?
> >=20
> > yeah, couldn't figure this out. The HW gives me a 16-bit value where
> > 12-bits are the mantissa and 4-bits are for the exponent. Should I call
> > realbits 16 and storagebits 32 ?
>=20
> so .realbits =3D 16 and .storagebits =3D 16, but there is no way to descr=
ibe=20
> the mantissa/exponent thing to userspace
>=20
> you are not using iio_triggered_buffer_setup() yet, so no need for=20
> .scan_type (yet)

ok... but then that brings up a doubt. What would I use triggered buffer
for ? I already setup High/Low limits (thresholds) through
=2Ewrite_event_value(). Isn't that, pretty much, a triggered buffer ?

--=20
balbi

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