linux-kernel - Re: [RFC 0/4] Intel Integrated Sensor Hub Support (ISH)

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Message-ID: <1465568791.7409.38.camel@hadess.net>
Date:	Fri, 10 Jun 2016 16:26:31 +0200
From:	Bastien Nocera <hadess@...ess.net>
To:	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
	Grant Likely <grant.likely@...retlab.ca>
Cc:	Jiri Kosina <jikos@...nel.org>, benjamin.tissoires@...hat.com,
	Jonathan Cameron <jic23@...nel.org>,
	"linux-input@...r.kernel.org" <linux-input@...r.kernel.org>,
	linux-iio@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	chaya.golan@...el.com, daniel.drubin@...el.com,
	Darren Hart <darren@...art.com>
Subject: Re: [RFC 0/4] Intel Integrated Sensor Hub Support (ISH)

On Fri, 2016-06-10 at 06:55 -0700, Srinivas Pandruvada wrote:
> On Fri, 2016-06-10 at 10:44 +0100, Grant Likely wrote:
> [...]
> > 
> > Yes, I do see the in_*_raw_* files in sysfs, and I'm able to get
> > data
> > out of them. Gnome also seems to recognize that the accelerometers
> > are
> > there because it adds a rotation lock button to the system menu.
> > 
> > However, the events are getting through yet. It may be that I'm
> > missing something in my kernel config. I'm rebuilding the kernel
> > with
> > Debian's config for the 4.5.5 kernel as a quick sanity test. I'll
> > report back when I've tried.
> > 
> You need to add in /usr/lib/system/systemd/iio-sensor-*
> 
> After=multi-user.target
> 
> 
> This service starts too early.

Nobody has been able to explain to me why that would be a problem.

Can you back this up with some data? Does iio-sensor-proxy exit too
early? Does that leave time to the IIO sub-system to do some init work
it should already have done?

See also https://github.com/hadess/iio-sensor-proxy/issues/82

> > I'll also take some time and review the patch series later this
> > afternoon.
> 
> Atri Bhattacharya reported issues with suspend/resume. With my test
> patches it is fixed for him
> 
> If you want to hold on, I will repost with fixes for susend/resume.