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-rw-r--r--Documentation/DocBook/v4l/compat.xml5
1 files changed, 3 insertions, 2 deletions
diff --git a/Documentation/DocBook/v4l/compat.xml b/Documentation/DocBook/v4l/compat.xml
index b42b935913cd..54447f0d0784 100644
--- a/Documentation/DocBook/v4l/compat.xml
+++ b/Documentation/DocBook/v4l/compat.xml
@@ -1091,8 +1091,9 @@ signed 64-bit integer. Output devices should not send a buffer out
until the time in the timestamp field has arrived. I would like to
follow SGI's lead, and adopt a multimedia timestamping system like
their UST (Unadjusted System Time). See
-http://reality.sgi.com/cpirazzi_engr/lg/time/intro.html. [This link is
-no longer valid.] UST uses timestamps that are 64-bit signed integers
+http://web.archive.org/web/*/http://reality.sgi.com
+/cpirazzi_engr/lg/time/intro.html.
+UST uses timestamps that are 64-bit signed integers
(not struct timeval's) and given in nanosecond units. The UST clock
starts at zero when the system is booted and runs continuously and
uniformly. It takes a little over 292 years for UST to overflow. There