am 29e678b9: am eda52f0a: am 4d1128b2: am 8eaf18b0: Merge "Documenting behavior of returning a 0-length array for formats, channels, rates queries for analog devices." into mnc-dev

* commit '29e678b9c77fa75232b4b9e147430a920e6f6cc4':
  Documenting behavior of returning a 0-length array for formats, channels, rates queries for analog devices.