linux-kernel - [PATCH v2 0/2] iio: Add single and double tap events support

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Message-Id: <20220813071803.4692-1-jagathjog1996@gmail.com>
Date:   Sat, 13 Aug 2022 12:48:01 +0530
From:   Jagath Jog J <jagathjog1996@...il.com>
To:     jic23@...nel.org, andy.shevchenko@...il.com, hadess@...ess.net,
        hdegoede@...hat.com
Cc:     linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 0/2] iio: Add single and double tap events support

This patch series adds new event type for tap called gesture and direction
is used to differentiate single and double tap. This series adds single
and double tap support for bma400 accelerometer device driver.

Changes since v1
1. Included headers in alphabetical order.
2. Changing tap_event_en variable name to tap_event_en_bitmask since it is
   used in bit manipulation operation.
3. Assigning boolean value to step_event_en and activity_event_en instead
   of 0, since they are boolean type members.
4. Using local variable for regmap_read() instead for *val itself.
5. Correcting typos.
6. Remove of IIO_EV_INFO_PERIOD.
7. Now all 4 tap controls like threshold, quiet, tics_dt and quiet_dt can
   be configured from the userspace.
8. Introducing new event info IIO_EV_INFO_RESET_TIMEOUT, and
   IIO_EV_INFO_TAP_2MIN_DELAY into iio_event_info.
9. Creating custom read/write attributes for tics_dt called
   in_accel_gesture_maxtomin_time.
10. Time based tap controls can be configured in seconds instead of raw
    values.
11. Provided all available values for time base tap controls in seconds.
12. Adding one more MODULE_AUTHOR().

Changes since RFC
1. Corrected the "quite" typo to "quiet".
2. Added proper reference and name of the section from datasheet.
3. Changed the ABI documentation to make it more generic.
4. Added ABI documentation for double tap quiet period.
5. Added available list by registering new event attribute for tap
   threshold values and double tap quiet period values.
6. Sending both single and double tap events separately.
8. Removed checking for tap enabled while changing data rate.
9. Returning invalid with error message if the input data rate is not
   200Hz while enabling tap interrupts.
7. Added datasheet reference for interrupt engine overrun.

Jagath Jog J (2):
  iio: Add new event type gesture and use direction for single and
    double tap
  iio: accel: bma400: Add support for single and double tap events

 Documentation/ABI/testing/sysfs-bus-iio |  41 +++
 drivers/iio/accel/bma400.h              |  13 +
 drivers/iio/accel/bma400_core.c         | 337 +++++++++++++++++++++++-
 drivers/iio/industrialio-event.c        |   7 +-
 include/linux/iio/types.h               |   2 +
 include/uapi/linux/iio/types.h          |   3 +
 tools/iio/iio_event_monitor.c           |   8 +-
 7 files changed, 399 insertions(+), 12 deletions(-)

base-commit: 180c6cb6b9b79c55b79e8414f4c0208f2463af7d
-- 
2.17.1