X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=udev.8;h=37b3b625e7da8c2751fc5fb133ff25305773a030;hb=1bed1db4994aae37f4a11e90dabcd8b4e3592686;hp=fd1b6dd2285e583c75ad1deb6e7fa038aeeeb01f;hpb=4865de442901cefebb7be889aa61233d8777b413;p=elogind.git

diff --git a/udev.8 b/udev.8
index fd1b6dd22..37b3b625e 100644
--- a/udev.8
+++ b/udev.8
@@ -27,7 +27,9 @@ On device removal,
 .B udev
 queries the internal database for the name of the device file to be deleted.
 .SH "CONFIGURATION"
-All udev configuration files consist of a set of lines of text.  All empty
+All
+.B udev
+configuration files consist of a set of lines of text.  All empty
 lines, and lines beginning with a '#' will be ignored.
 .P
 
@@ -96,11 +98,9 @@ device. If no matching configuration is found, the default kernel device name
 is used.
 .P
 The line format is:
-.RS
 .sp
 .I method, key,[key,...] name
 .sp
-.RE
 where valid methods with corresponding keys are:
 .TP
 .B CALLOUT
@@ -130,22 +130,13 @@ string replacement of the kernel device name
 key: \fBKERNEL_NAME\fP
 .P
 The methods are applied in the following order:
-.B CALLOUT
-,
-.B LABEL
-,
-.B NUMBER
-,
-.B TOPOLOGY
-,
-.B REPLACE
+.BR CALLOUT ", " LABEL ", " NUMBER ",  " TOPOLOGY ", " REPLACE "."
 .P
 The 
 .B NAME 
 and 
 .B PROGRAM 
-fields support simple printf-like string subtitution:
-.RS
+fields support simple printf-like string substitution:
 .TP
 .B %n
 the "kernel number" of the device
@@ -168,7 +159,6 @@ the CALLOUT program returned string
 Use the devfs style disk name for this device.
 For partitions, this will result in 'part%n'
 If this is not a partition, it will result in 'disk'
-.RE
 .P
 A sample \fIudev.rules\fP might look like this:
 .sp
@@ -199,12 +189,10 @@ or specified by the
 value in the 
 .I /etc/udev/udev.conf
 file.
-The file consists of a set of lines. All empty lines and
-lines beginning with a '#' will be ignored.
 .br
 Every line lists a device name followed by owner, group and permission
-mode. All values are separated by colons. The name field may end with a
-wildcard to apply the values to a whole class of devices.
+mode. All values are separated by colons. The name field may contain a
+pattern to apply the values to a whole class of devices.
 .br
 If
 .B udev
@@ -221,6 +209,22 @@ ttyUSB1:0:8:0660
 video*:root:video:0660
 dsp1:::0666
 .fi
+.P
+A number of different fields in the above configuration files support a simple
+form of shell style pattern matching. It supports the following pattern characters:
+.TP
+.B *
+Matches zero, one, or more characters.
+.TP
+.B ?
+Matches any single character, but does not match zero characters.
+.TP
+.B [ ]
+Matches any single character specified within the brackets. For example, the
+pattern string "tty[SR]" would match either "ttyS" or "ttyR".  Ranges are also
+supported within this match with the '-' character.  For example, to match on
+the range of all digits, the pattern [0-9] would be used. If the first character
+following the '[' is a '!' then any character not enclosed is matched.
 .SH "FILES"
 .nf
 .ft B
@@ -239,4 +243,5 @@ web site.
 .SH AUTHORS
 .B udev
 was developed by Greg Kroah-Hartman <greg@kroah.com> with much help from
-Dan Stekloff <dsteklof@us.ibm.com> and many others.
+Dan Stekloff <dsteklof@us.ibm.com>, Kay Sievers <kay.sievers@vrfy.org>, and
+many others.