--- a/portaudio/include/pa_linux_alsa.h
+++ b/portaudio/include/pa_linux_alsa.h
@@ -2,7 +2,7 @@
 #define PA_LINUX_ALSA_H
 
 /*
- * $Id: pa_linux_alsa.h 1236 2007-06-24 20:39:26Z aknudsen $
+ * $Id: pa_linux_alsa.h 1414 2009-05-24 17:02:10Z aknudsen $
  * PortAudio Portable Real-Time Audio Library
  * ALSA-specific extensions
  *
@@ -40,7 +40,8 @@
  */
 
 /** @file
- * ALSA-specific PortAudio API extension header file.
+ *  @ingroup public_header
+ *  @brief ALSA-specific PortAudio API extension header file.
  */
 #include "portaudio.h"
 
@@ -86,6 +87,11 @@
  */
 PaError PaAlsa_SetNumPeriods( int numPeriods );
 
+/** Set the maximum number of times to retry opening busy device (sleeping for a
+ * short interval inbetween).
+ */
+PaError PaAlsa_SetRetriesBusy( int retries );
+
 #ifdef __cplusplus
 }
 #endif