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From: "Pandruvada, Srinivas" <srinivas.pandruvada@intel.com>
To: "nish.aravamudan@gmail.com" <nish.aravamudan@gmail.com>
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Subject: Re: iio/hid-sensor-accel-3d: no output from /dev/iio:device*?
Thread-Topic: iio/hid-sensor-accel-3d: no output from /dev/iio:device*?
Thread-Index: AQHROS94+E6iDu/JuE++w14keB1+BJ7QdQAAgAAAJ4CAABdrAIAABHqA
Date: Fri, 18 Dec 2015 02:50:52 +0000
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On Thu, 2015-12-17 at 18:33 -0800, Nish Aravamudan wrote:
> On Thu, Dec 17, 2015 at 5:11 PM, Pandruvada, Srinivas
> <srinivas.pandruvada@intel.com> wrote:
> > On Thu, 2015-12-17 at 17:08 -0800, Nish Aravamudan wrote:
> > > On Thu, Dec 17, 2015 at 5:00 PM, Pandruvada, Srinivas
> > > <srinivas.pandruvada@intel.com> wrote:
> > > > Hi Andy,
> > > > 
> > > > As per Nish these patches are impacting sensors on Yoga.
> > > > https://lkml.org/lkml/2015/11/30/441
> > > 
> > > To be clear, without that series, the touchpad and touchscreen on
> > > the
> > > Yoga 900 don't work at all. So they are necessary for
> > > functioning. I
> > > don't know (I will test it now), if removing the series makes the
> > > IIO
> > > sensors work properly in /dev/.
> > This is important to know before we take Andy's time.
> 
> It seems like Andy's patches are not the problem. That is, with stock
> 4.4-rc5, the accelerommeter /dev files still do not update.
> 
Can you not use raw values by polling from user space? Send me
report description. It should be in
/sys/kernel/debug/hid/ "your device id" /redesc.

Also device id ("your device id") above.

Thanks,
Srinivas


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