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1What: /sys/bus/iio/devices/triggerX/trigger_polarity2KernelVersion: 4.113Contact: fabrice.gasnier@st.com4Description:5 The STM32 ADC can be configured to use external trigger sources6 (e.g. timers, pwm or exti gpio). Then, it can be tuned to start7 conversions on external trigger by either:8 9 - "rising-edge"10 - "falling-edge"11 - "both-edges".12 13 Reading returns current trigger polarity.14 15 Writing value before enabling conversions sets trigger polarity.16 17What: /sys/bus/iio/devices/triggerX/trigger_polarity_available18KernelVersion: 4.1119Contact: fabrice.gasnier@st.com20Description:21 List all available trigger_polarity settings.22