From: Nish Aravamudan <nish.aravamudan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Jiri Kosina <jikos-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Jonathan Cameron <jic23-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Srinivas Pandruvada
<srinivas.pandruvada-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
Hartmut Knaack <knaack.h-Mmb7MZpHnFY@public.gmane.org>,
Lars-Peter Clausen <lars-Qo5EllUWu/uELgA04lAiVw@public.gmane.org>,
Peter Meerwald <pmeerw-jW+XmwGofnusTnJN9+BGXg@public.gmane.org>,
linux-input-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-iio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Crt Mori <cmo-fc6wVz46lShBDgjK7y7TUQ@public.gmane.org>
Subject: iio/hid-sensor-accel-3d: no output from /dev/iio:device*?
Date: Thu, 17 Dec 2015 15:38:22 -0800 [thread overview]
Message-ID: <CAOhV88ODTazDA2jmn9DP5idMmXXQa9jKB9Ur_aWTD_3WYZM1fw@mail.gmail.com> (raw)
[Starting a new thread from https://lkml.org/lkml/2015/12/15/663, as
now my laptop is displaying values in the sysfs *raw* files.]
So I'm trying to understand exactly how the hid-sensor-accel-3d driver works.
If I turn up debugging, when I `cat
/sys/bus/iio/devices/device*/*raw*`, I see "iio iio:device3:
accel_3d_proc_event" and I think that means that
hid_sensor_push_data() is getting called.
But read()'s on /dev/iio:device3 never produces anything, which is
what iio-sensor-proxy uses to translate events to dbus.
Is it expected that the dev-node is "silent"? Just trying to
understand if an extension to the driver to support a chardev based
output is appropriate, or if iio-sensor-proxy needs to be changed to
handle this device.
-Nish
next reply other threads:[~2015-12-17 23:38 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-17 23:38 Nish Aravamudan [this message]
[not found] ` <CAOhV88ODTazDA2jmn9DP5idMmXXQa9jKB9Ur_aWTD_3WYZM1fw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-12-18 0:51 ` iio/hid-sensor-accel-3d: no output from /dev/iio:device*? Srinivas Pandruvada
2015-12-18 1:00 ` Pandruvada, Srinivas
2015-12-18 1:08 ` Nish Aravamudan
[not found] ` <CAOhV88OinTE31-qp1vh-4XHT-TqMTTOYwHiLk0yptg0prwetjw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-12-18 1:11 ` Pandruvada, Srinivas
[not found] ` <1450400953.5427.18.camel-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-12-18 2:33 ` Nish Aravamudan
2015-12-18 2:50 ` Pandruvada, Srinivas
[not found] ` <1450406943.3885.3.camel-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-12-18 3:06 ` Nish Aravamudan
[not found] ` <CAOhV88MH4pyX1j8qutc47vjpwQcb9bEUFTyocLtNH5JnVve+6A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-12-18 16:58 ` Pandruvada, Srinivas
2015-12-18 1:07 ` Nish Aravamudan
[not found] ` <CAOhV88MYvtD508toqR2KLOdpSq_tU=kwQKOf252t1sdiK4SviQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-12-18 1:16 ` Srinivas Pandruvada
[not found] ` <1450401390.5427.22.camel-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2015-12-18 1:59 ` Nish Aravamudan
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