First draft implementation of 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 AFAIK, consumers work synchronously in direct mode, i.e. timestamping may be peformed using traditional kernel time keeping. Comments are welcome. Regards. Gregor Boirie (3): iio:core: timestamping clock selection support iio:core: timestamping clock resolution support iio: make drivers use new timestamping clock API 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/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 | 130 +++++++++++++++++++++- 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/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 | 2 +- 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 +- drivers/staging/iio/magnetometer/hmc5843_core.c | 2 +- include/linux/iio/iio.h | 11 +- 63 files changed, 264 insertions(+), 113 deletions(-) -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
