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From: John Baldwin <jhb@FreeBSD.org>
Date: Thu, 9 Sep 2010 18:51:20 +0000 (UTC)
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Subject: svn commit: r212372 - head/usr.sbin/pciconf
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Author: jhb
Date: Thu Sep  9 18:51:20 2010
New Revision: 212372
URL: http://svn.freebsd.org/changeset/base/212372

Log:
  Document the format of extended capabilities in the '-c' output.

Modified:
  head/usr.sbin/pciconf/pciconf.8

Modified: head/usr.sbin/pciconf/pciconf.8
==============================================================================
--- head/usr.sbin/pciconf/pciconf.8	Thu Sep  9 18:35:08 2010	(r212371)
+++ head/usr.sbin/pciconf/pciconf.8	Thu Sep  9 18:51:20 2010	(r212372)
@@ -142,7 +142,7 @@ If the
 option is supplied,
 .Nm
 will list any capabilities supported by each device.
-Each capability will be enumerated via a line in the following format:
+Each capability is enumerated via a line in the following format:
 .Bd -literal
     cap 10[40] = PCI-Express 1 root port
 .Ed
@@ -154,6 +154,18 @@ The second value in the square brackets 
 in config space in hexadecimal.
 The format of the text after the equals sign is capability-specific.
 .Pp
+Each extended capability is enumerated via a line in a similar format:
+.Bd -literal
+ecap 0002[100] = VC 1 max VC0
+.Ed
+.Pp
+The first value after the
+.Dq Li ecap
+prefix is the extended capability ID in hexadecimal.
+The second value in the square brackets is the offset of the extended
+capability in config space in hexadecimal.
+The format of the text after the equals sign is capability-specific.
+.Pp
 If the
 .Fl v
 option is supplied,