am f0e4ec1a: am 66a4095c: Be more explicit about the rate at which sensor events must be returned

Merge commit 'f0e4ec1a04701c40e38a09a97e6f1c417163e0c2'

* commit 'f0e4ec1a04701c40e38a09a97e6f1c417163e0c2':
  Be more explicit about the rate at which sensor events must be returned