1What: /sys/bus/iio/devices/triggerX/trigger_polarity 2KernelVersion: 4.11 3Contact: fabrice.gasnier@st.com 4Description: 5 The STM32 ADC can be configured to use external trigger sources 6 (e.g. timers, pwm or exti gpio). Then, it can be tuned to start 7 conversions on external trigger by either: 8 - "rising-edge" 9 - "falling-edge" 10 - "both-edges". 11 Reading returns current trigger polarity. 12 Writing value before enabling conversions sets trigger polarity. 13 14What: /sys/bus/iio/devices/triggerX/trigger_polarity_available 15KernelVersion: 4.11 16Contact: fabrice.gasnier@st.com 17Description: 18 List all available trigger_polarity settings. 19