Refine broadcastradio HAL comments.
Bug: b/64113304
Test: it builds
Change-Id: I42c1d32dbe436c97f0a05b4fdb88f60f11ceb0a1
diff --git a/broadcastradio/1.1/ITuner.hal b/broadcastradio/1.1/ITuner.hal
index a5c569a..cc2e58d 100644
--- a/broadcastradio/1.1/ITuner.hal
+++ b/broadcastradio/1.1/ITuner.hal
@@ -84,6 +84,13 @@
* subsequent calls to startBackgroundScan, issuing a single
* backgroundScanComplete callback.
*
+ * If a device supports continuous background scanning, it may succeed
+ * (return OK and call backgroundScanComplete) without any additional
+ * operation performed.
+ *
+ * Foreground scanning may be implemented in the front end app with
+ * @1.0::ITuner scan operation.
+ *
* @return result OK if the scan was properly scheduled (this does not mean
* it successfully finished).
* UNAVAILABLE if the background scan is unavailable,