libblkid: update man page

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/libs/blkid/libblkid.3 b/libs/blkid/libblkid.3
index 89747ecf1c4cc4f8a0f380fd3a9462d7bd39b18d..46eb868bc1c6760a12990e245ad004021230e007 100644 (file)
--- a/libs/blkid/libblkid.3
+++ b/libs/blkid/libblkid.3
@@ -5,7 +5,7 @@
 .\" This file may be copied under the terms of the GNU Public License.
 .\"
 .\" Created  Wed Sep 14 12:02:12 2001, Andreas Dilger
-.TH LIBBLKID 3 "February 2009" "Linux" "MAINTENANCE COMMANDS""
+.TH LIBBLKID 3 "May 2009" "util-linux-ng"
 .SH NAME
 libblkid \- block device identification library
 .SH SYNOPSIS
@@ -45,14 +45,43 @@ some way to locate these devices without enumerating only visible devices,
 so the use of the cache file is
 .B required
 in this situation.
+.SH CONFIGURATION FILE
+The standard location of the
+.I /etc/blkid.conf
+config file can be overridden by the environment variable BLKID_CONF.
+The following options control the libblkid library:
+.TP
+.I SEND_UEVENT=<yes|not>
+Sends uevent when
+.I /dev/disk/by-{label,uuid}/
+symlink does not match with LABEL or UUID on the device. Default is "yes".
+.TP
+.I CACHE_FILE=<path>
+Overrides the standard location of the cache file. This setting can be
+overridden by the environment variable BLKID_FILE. Default is
+.I /etc/blkid.tab.
+.TP
+.I EVALUATE=<methods>
+Defines LABEL and UUID evaluation method(s). Currently, the libblkid library
+supports "udev" and "scan" methods. More than one methods may be specified in
+a comma separated list. Default is "udev,scan". The "udev" method uses udev
+.I /dev/disk/by-*
+symlinks and the "scan" method scans all block devices from the
+.I /proc/partitions
+file.
 .SH AUTHOR
 .B libblkid
 was written by Andreas Dilger for the ext2 filesystem utilties, with input
 from Ted Ts'o.  The library was subsequently heavily modified by Ted Ts'o.
+
+The low-level probing code was rewritten by Karel Zak.
 .SH FILES
-.TP
+.TP 18
 .I /etc/blkid.tab
-Caches data extracted from each recognized block device.
+caches data extracted from each recognized block device
+.TP
+.I /etc/blkid.conf
+configuration file
 .SH AVAILABILITY
 .B libblkid
 is part of the util-linux-ng package since version 2.15 and is available from