Imported Upstream version 2.7.3

conf/ups.conf.sample

@@ -75,6 +75,21 @@
 #
 #                The default is 45 seconds.
 #
+# synchronous: optional.  The driver work by default in asynchronous
+#              mode (i.e *synchronous=no*).  This means that all data
+#              are pushed by the driver on the communication socket to
+#              upsd (Unix socket on Unix, Named pipe on Windows) without
+#              waiting for these data to be actually consumed.  With
+#              some HW, such as ePDUs, that can produce a lot of data,
+#              asynchronous mode may cause some congestion, resulting in
+#              the socket to be full, and the driver to appear as not
+#              connected.  By enabling the 'synchronous' flag
+#              (value = 'yes'), the driver will wait for data to be
+#              consumed by upsd, prior to publishing more.  This can be
+#              enabled either globally or per driver.
+#
+#              The default is 'no' (i.e. asynchronous mode) for backward
+#              compatibility of the driver behavior.
 #
 # Anything else is passed through to the hardware-specific part of
 # the driver.