scenarios like periodic alarms at fifteen minutes after every hour,
or on the first day of each month.
Such usage is nonportable;
-portable user-space code only expects a single alarm interrupt, and
+portable user-space code expects only a single alarm interrupt, and
will either disable or reinitialize the alarm after receiving it.
Some RTCs support periodic interrupts with periods that are multiples
.I Documentation/rtc.txt
in the Linux kernel source tree
+.SH COLOPHON
+This page is part of release 3.79 of the Linux
+.I man-pages
+project.
+A description of the project,
+information about reporting bugs,
+and the latest version of this page,
+can be found at
+\%http://www.kernel.org/doc/man\-pages/.