From: Michael Welling <mwelling@ieee.org>
To: Lucas De Marchi <lucas.de.marchi@gmail.com>
Cc: Daniel Baluta <daniel.baluta@intel.com>,
Jonathan Cameron <jic23@kernel.org>,
Hartmut Knaack <knaack.h@gmx.de>,
Lars-Peter Clausen <lars@metafoo.de>,
Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
lkml <linux-kernel@vger.kernel.org>,
linux-iio@vger.kernel.org,
Lucas De Marchi <lucas.demarchi@intel.com>,
Guenter Roeck <linux@roeck-us.net>,
eibach@gdsys.de
Subject: Re: [PATCH v4] iio: adc: Add TI ADS1015 ADC driver support
Date: Mon, 29 Feb 2016 19:33:03 -0600 [thread overview]
Message-ID: <20160301013303.GA18806@deathstar> (raw)
In-Reply-To: <CAKi4VAKBOge=-DcT9S7+uZWUte3EFNQ95u-fHCudRXZHqYuE1w@mail.gmail.com>
On Mon, Feb 29, 2016 at 10:09:10PM -0300, Lucas De Marchi wrote:
> On Mon, Feb 29, 2016 at 9:50 PM, Michael Welling <mwelling@ieee.org> wrote:
> > On Fri, Feb 05, 2016 at 03:17:18PM +0200, Daniel Baluta wrote:
> >> The driver has sysfs readings with runtime PM support for power saving.
> >> It also offers buffer support that can be used together with IIO software
> >> triggers.
> >>
> >
> > Daniel,
> >
> > So I noticed something yesterday while testing new boards.
> > The channels are occassionally swapping when accessing data from multiple channels.
> >
> > I wrote a simple bash script to demonstrate.
>
> This happened to me in a previous version of the patch. I remember it
> being fixed in the last version (or at least I could not reproduce).
> I'll test again tomorrow with your script.
>
Just verified that it is happening to me will the latest in linux-next.
root@dragonboard-410c:~# cat /proc/version
Linux version 4.5.0-rc6-next-20160229+ (michael@deathstar) (gcc version 5.2.0 (GCC) ) #1 SMP PREEMPT Mon Feb 29 19:27:11 CST 2016
root@dragonboard-410c:~# ./test-analog.sh
ain0 = 267 ain1 = 286 ain2 = 268 ain3 = 288
ain0 = 283 ain1 = 284 ain2 = 284 ain3 = 0
ain0 = 0 ain1 = 284 ain2 = 287 ain3 = 0
ain0 = 0 ain1 = 285 ain2 = 287 ain3 = 0
ain0 = 282 ain1 = 284 ain2 = 287 ain3 = 0
ain0 = 283 ain1 = 284 ain2 = 286 ain3 = 0
ain0 = 283 ain1 = 290 ain2 = 285 ain3 = 288
ain0 = 284 ain1 = 286 ain2 = 285 ain3 = 0
ain0 = 0 ain1 = 284 ain2 = 285 ain3 = 0
ain0 = 0 ain1 = 286 ain2 = 287 ain3 = 0
ain0 = 0 ain1 = 284 ain2 = 289 ain3 = 0
.
.
> Lucas De Marchi
next prev parent reply other threads:[~2016-03-01 1:33 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-05 13:17 [PATCH v4] iio: adc: Add TI ADS1015 ADC driver support Daniel Baluta
2016-02-05 17:25 ` Michael Welling
2016-02-05 19:32 ` Daniel Baluta
2016-02-05 19:50 ` Michael Welling
2016-02-06 0:32 ` Michael Welling
2016-02-08 10:25 ` Wolfram Sang
2016-02-08 14:44 ` Daniel Baluta
2016-02-08 15:03 ` Daniel Baluta
2016-02-08 16:37 ` Michael Welling
2016-02-08 16:36 ` Michael Welling
2016-02-08 19:11 ` Sricharan
2016-02-08 19:16 ` Michael Welling
2016-02-08 20:00 ` Wolfram Sang
2016-02-08 20:06 ` Michael Welling
2016-02-10 12:22 ` Sricharan
2016-02-10 12:56 ` Daniel Baluta
2016-02-10 15:09 ` Sricharan
2016-02-10 16:36 ` Michael Welling
2016-02-17 23:53 ` Michael Welling
2016-02-18 8:45 ` Sricharan
2016-02-05 21:02 ` Lucas De Marchi
2016-02-05 21:44 ` Daniel Baluta
2016-02-06 10:52 ` Jonathan Cameron
2016-02-06 11:05 ` Jonathan Cameron
2016-02-06 11:07 ` Jonathan Cameron
2016-03-01 0:50 ` Michael Welling
2016-03-01 1:09 ` Lucas De Marchi
2016-03-01 1:16 ` Michael Welling
2016-03-01 1:33 ` Michael Welling [this message]
2016-03-01 2:42 ` Michael Welling
2016-03-01 8:35 ` jic23
2016-03-01 16:02 ` Michael Welling
2016-03-01 17:24 ` Jonathan Cameron
2016-03-01 11:28 ` Daniel Baluta
2016-03-01 15:57 ` Michael Welling
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