Add comment to confusing commands.
Change-Id: I7b84b9d8e9b3b595e0bab33d5e219842f6c86f83
diff --git a/libs/rs/rsThreadIO.h b/libs/rs/rsThreadIO.h
index ebce0ab..7e730df 100644
--- a/libs/rs/rsThreadIO.h
+++ b/libs/rs/rsThreadIO.h
@@ -37,6 +37,12 @@
// Plays back commands from the client.
// Returns true if any commands were processed.
+ //
+ // waitForCommand: true, block until a command arrives or
+ // the specified time expires.
+ //
+ // timeToWait: Max time to block in microseconds. A value of zero indicates
+ // an indefinite wait.
bool playCoreCommands(Context *con, bool waitForCommand, uint64_t timeToWait);
void setTimoutCallback(void (*)(void *), void *, uint64_t timeout);