Pi undervoltage interferes with measurement frequencies
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We noticed that some devices when using the datlog sample program were sampling at lower than expected frequencies.
When 48KHz was specified, we were only getting ~24KHz.
Checking dmesg we noticed that the Pi kernel was issuing undervoltage warnings like:
Under-voltage detected! (0x00050005)
rpi_firmware_get_throttled: 1 callbacks suppressed
When the power regulator was adjusted the issue seemed to go away.
Should a warning be raised by the driver if the device is not performing correctly, as in this case?
moved to gitlab