0001 What: /sys/bus/iio/devices/triggerX/trigger_polarity
0002 KernelVersion: 4.11
0003 Contact: fabrice.gasnier@st.com
0004 Description:
0005 The STM32 ADC can be configured to use external trigger sources
0006 (e.g. timers, pwm or exti gpio). Then, it can be tuned to start
0007 conversions on external trigger by either:
0008
0009 - "rising-edge"
0010 - "falling-edge"
0011 - "both-edges".
0012
0013 Reading returns current trigger polarity.
0014
0015 Writing value before enabling conversions sets trigger polarity.
0016
0017 What: /sys/bus/iio/devices/triggerX/trigger_polarity_available
0018 KernelVersion: 4.11
0019 Contact: fabrice.gasnier@st.com
0020 Description:
0021 List all available trigger_polarity settings.
