| What: /sys/bus/iio/devices/triggerX/trigger_polarity |
| KernelVersion: 4.11 |
| Contact: fabrice.gasnier@st.com |
| Description: |
| The STM32 ADC can be configured to use external trigger sources |
| (e.g. timers, pwm or exti gpio). Then, it can be tuned to start |
| conversions on external trigger by either: |
| - "rising-edge" |
| - "falling-edge" |
| - "both-edges". |
| Reading returns current trigger polarity. |
| Writing value before enabling conversions sets trigger polarity. |
| |
| What: /sys/bus/iio/devices/triggerX/trigger_polarity_available |
| KernelVersion: 4.11 |
| Contact: fabrice.gasnier@st.com |
| Description: |
| List all available trigger_polarity settings. |