From: Gregor Boirie <gregor.boirie@parrot.com>
To: <linux-iio@vger.kernel.org>
Cc: Jonathan Cameron <jic23@kernel.org>,
Hartmut Knaack <knaack.h@gmx.de>,
Lars-Peter Clausen <lars@metafoo.de>,
Peter Meerwald <pmeerw@pmeerw.net>,
Daniel Baluta <daniel.baluta@intel.com>,
Haneen Mohammed <hamohammed.sa@gmail.com>,
Matt Ranostay <mranostay@gmail.com>,
Irina Tirdea <irina.tirdea@intel.com>,
Darshana Padmadas <darshanapadmadas@gmail.com>,
Martin Fuzzey <mfuzzey@parkeon.com>,
Octavian Purdila <octavian.purdila@intel.com>,
Vladimir Barinov <vladimir.barinov@cogentembedded.com>,
Crt Mori <cmo@melexis.com>,
"Masanari Iida" <standby24x7@gmail.com>,
Harald Geyer <harald@ccbib.org>,
Gregor Boirie <gregor.boirie@parrot.com>
Subject: [PATCH v3 0/1] iio:core: introduce timestamping clock selection
Date: Mon, 22 Feb 2016 16:17:19 +0100 [thread overview]
Message-ID: <cover.1456153753.git.gregor.boirie@parrot.com> (raw)
IIO timestamping clock selection support based on the following principles :
* selected timestamping clock is a per-device attribute which the userspace
may access through a sysfs file ;
* a single reference clock is used for both buffered samples and events of a
given device at the same time ;
* userspace may choose amongst the following subset of available POSIX clocks:
CLOCK_REALTIME, CLOCK_MONOTONIC, CLOCK_MONOTONIC_RAW, CLOCK_REALTIME_COARSE,
CLOCK_MONOTONIC_COARSE, CLOCK_BOOTTIME and CLOCK_TAI ;
* sample and event timestamps consistency with respect to clock changes is
ensured by rejecting the ability to select a new clock as long as an events
chrdev is opened or a buffered samples channel is enabled for a given device.
* no in-kernel API support since :
* consumers work synchronously in direct mode, i.e. timestamping may be
peformed using traditional kernel time keeping ;
* any given device can only feed a single timestamping channel to all
consumers.
Changes since v1:
* isolate clock setup from sysfs
* rename timestamping clock sysfs entry to "timestamp_clock"
* make the "timestamp_clock" file content a self-describing string
* merge all 3 patches into a single one
* cosmetics
* rebase onto IIO testing branch
Changes since v2:
* rename timestamping clock sysfs entry to "current_timestamp_clock" to allow a
futur refinement exposing available clocks through a
"timestamp_clock_available" sysfs entry
* rename clock ids (remove "CLOCK_" prefix + lower case)
* checkpatch'ed
* rebase onto IIO testing branch
Regards.
Gregor Boirie (1):
iio:core: timestamping clock selection support
Documentation/ABI/testing/sysfs-bus-iio | 7 +
Documentation/DocBook/iio.tmpl | 2 +-
drivers/iio/accel/bma180.c | 2 +-
drivers/iio/accel/bmc150-accel-core.c | 4 +-
drivers/iio/accel/kxcjk-1013.c | 2 +-
drivers/iio/accel/mma7455_core.c | 3 +-
drivers/iio/accel/mma8452.c | 4 +-
drivers/iio/accel/mma9551.c | 2 +-
drivers/iio/accel/mma9553.c | 2 +-
drivers/iio/adc/ad7291.c | 2 +-
drivers/iio/adc/ad7298.c | 2 +-
drivers/iio/adc/ad7476.c | 2 +-
drivers/iio/adc/ad7887.c | 2 +-
drivers/iio/adc/ad7923.c | 2 +-
drivers/iio/adc/ad799x.c | 4 +-
drivers/iio/adc/cc10001_adc.c | 2 +-
drivers/iio/adc/hi8435.c | 2 +-
drivers/iio/adc/ina2xx-adc.c | 6 +-
drivers/iio/adc/max1363.c | 5 +-
drivers/iio/adc/ti-ads1015.c | 3 +-
drivers/iio/adc/vf610_adc.c | 3 +-
drivers/iio/adc/xilinx-xadc-events.c | 4 +-
drivers/iio/chemical/atlas-ph-sensor.c | 2 +-
drivers/iio/dac/ad5421.c | 6 +-
drivers/iio/dac/ad5504.c | 2 +-
drivers/iio/dummy/iio_simple_dummy_buffer.c | 3 +-
drivers/iio/dummy/iio_simple_dummy_events.c | 2 +-
drivers/iio/gyro/bmg160_core.c | 30 ++--
drivers/iio/humidity/dht11.c | 16 +-
drivers/iio/iio_core.h | 3 +
drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c | 2 +-
drivers/iio/industrialio-core.c | 179 +++++++++++++++++++++-
drivers/iio/industrialio-event.c | 19 ++-
drivers/iio/industrialio-trigger.c | 2 +-
drivers/iio/light/acpi-als.c | 2 +-
drivers/iio/light/adjd_s311.c | 2 +-
drivers/iio/light/apds9300.c | 2 +-
drivers/iio/light/apds9960.c | 4 +-
drivers/iio/light/cm36651.c | 2 +-
drivers/iio/light/gp2ap020a00f.c | 8 +-
drivers/iio/light/isl29125.c | 2 +-
drivers/iio/light/lm3533-als.c | 2 +-
drivers/iio/light/ltr501.c | 7 +-
drivers/iio/light/opt3001.c | 4 +-
drivers/iio/light/stk3310.c | 2 +-
drivers/iio/light/tcs3414.c | 2 +-
drivers/iio/light/tcs3472.c | 2 +-
drivers/iio/light/tsl2563.c | 2 +-
drivers/iio/light/us5182d.c | 2 +-
drivers/iio/magnetometer/hmc5843_core.c | 2 +-
drivers/iio/magnetometer/mag3110.c | 2 +-
drivers/iio/pressure/mpl3115.c | 2 +-
drivers/iio/pressure/ms5611_core.c | 3 +-
drivers/iio/proximity/pulsedlight-lidar-lite-v2.c | 2 +-
drivers/iio/proximity/sx9500.c | 4 +-
drivers/staging/iio/accel/lis3l02dq_core.c | 2 +-
drivers/staging/iio/accel/sca3000_core.c | 2 +-
drivers/staging/iio/adc/ad7280a.c | 8 +-
drivers/staging/iio/adc/ad7606_ring.c | 3 +-
drivers/staging/iio/adc/ad7816.c | 3 +-
drivers/staging/iio/addac/adt7316.c | 4 +-
drivers/staging/iio/cdc/ad7150.c | 2 +-
drivers/staging/iio/light/tsl2x7x_core.c | 2 +-
include/linux/iio/iio.h | 22 ++-
64 files changed, 326 insertions(+), 115 deletions(-)
--
2.1.4
next reply other threads:[~2016-02-22 15:17 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-22 15:17 Gregor Boirie [this message]
2016-02-22 15:17 ` [PATCH v3 1/1] iio:core: timestamping clock selection support Gregor Boirie
2016-02-22 19:14 ` Harald Geyer
2016-02-23 8:36 ` Gregor Boirie
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=cover.1456153753.git.gregor.boirie@parrot.com \
--to=gregor.boirie@parrot.com \
--cc=cmo@melexis.com \
--cc=daniel.baluta@intel.com \
--cc=darshanapadmadas@gmail.com \
--cc=hamohammed.sa@gmail.com \
--cc=harald@ccbib.org \
--cc=irina.tirdea@intel.com \
--cc=jic23@kernel.org \
--cc=knaack.h@gmx.de \
--cc=lars@metafoo.de \
--cc=linux-iio@vger.kernel.org \
--cc=mfuzzey@parkeon.com \
--cc=mranostay@gmail.com \
--cc=octavian.purdila@intel.com \
--cc=pmeerw@pmeerw.net \
--cc=standby24x7@gmail.com \
--cc=vladimir.barinov@cogentembedded.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.