What: /sys/kernel/debug/iio/iio:deviceX/frequency_source KernelVersion: 7.3 Contact: linux-iio@vger.kernel.org Description: Read-only. Reports the channel label that is read from the _[Y]_label attribute, which corresponds to the on-chip signal generator that is currently driving the output frequency. What: /sys/kernel/debug/iio/iio:deviceX/phase_source KernelVersion: 7.3 Contact: linux-iio@vger.kernel.org Description: Read-only. Reports the channel label that is read from the _[Y]_label attribute, which corresponds to the on-chip signal generator that is currently driving the output phase. What: /sys/kernel/debug/iio/iio:deviceX/amplitude_source KernelVersion: 7.3 Contact: linux-iio@vger.kernel.org Description: Read-only. Reports the channel label that is read from the _[Y]_label attribute, which corresponds to the on-chip signal generator that is currently driving the output amplitude.