X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=m4%2Fgengetopt%2Falsa_write.m4;h=bb4b0619493a38464bcb537d4002d8dcbae5ff28;hp=73d9805fc1564f334359d5150c1c56ba02045539;hb=480d69f921a23cfe62e05692cd646b8fce50d262;hpb=3ac2a1478a7ad965bb48bec7d21aa49affd95d29

diff --git a/m4/gengetopt/alsa_write.m4 b/m4/gengetopt/alsa_write.m4
index 73d9805f..bb4b0619 100644
--- a/m4/gengetopt/alsa_write.m4
+++ b/m4/gengetopt/alsa_write.m4
@@ -16,4 +16,21 @@ details = "
 	ALSA is present in your kernel. The file /proc/asound/devices
 	contains all devices ALSA knows about.
 "
+
+option "buffer-time" B
+#~~~~~~~~~~~~~~~~~~~~~
+"duration of the ALSA buffer"
+int typestr = "milliseconds"
+default = "170"
+optional
+details = "
+	This is only a hint as ALSA might pick a slightly different
+	time, depending on the sound hardware. The chosen value is
+	shown in debug output as BUFFER_TIME.
+
+	If synchronization between multiple clients is desired,
+	the same buffer time should be configured for all clients.
+"
+
 </qu>
+