October 2017
Intermediate to advanced
586 pages
14h 8m
English
Content preview from Linux Device Drivers Development
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Capturing using the hrtimer trigger
The following is the set of commands that allow you to capture data using the hrtimer trigger:
# echo /sys/kernel/config/iio/triggers/hrtimer/trigger0 # echo 50 > /sys/bus/iio/devices/trigger0/sampling_frequency # echo 1 > /sys/bus/iio/devices/iio:device0/scan_elements/in_voltage4_en # echo 1 > /sys/bus/iio/devices/iio:device0/scan_elements/in_voltage5_en # echo 1 > /sys/bus/iio/devices/iio:device0/scan_elements/in_voltage6_en # echo 1 > /sys/bus/iio/devices/iio:device0/scan_elements/in_voltage7_en # echo 1 > /sys/bus/iio/devices/iio:device0/buffer/enable # cat /dev/iio:device0 | xxd - 0000000: 0188 1a30 0000 0000 8312 68a8 c24f 5a14 ...0......h..OZ. 0000010: 0188 1a30 0000 0000 192d 98a9 c24f 5a14 ...0.....-...OZ. ...