[PATCH] support =, ==, !=, += for the key match and assignment

[elogind.git] / udev.8.in

diff --git a/udev.8.in b/udev.8.in
index e02596053258523a99715330630b5ad1f3d2d1a6..dbba2979728f3f57ed0db18f030d0bc3ef549a7e 100644 (file)
--- a/udev.8.in
+++ b/udev.8.in
@@ -92,11 +92,11 @@ the name is used to name the device file or the network interface.
 .br
 If no matching rule is found, the default kernel device name is used.
 .P
 .br
 If no matching rule is found, the default kernel device name is used.
 .P

-Every rule consists of a list of comma separated fields:
+Every rule consists of a list of comma separated key value fields:

 .sp
 .sp

-.IR "key " ,[ "key " ,...] " name " [, " symlink" ]
-.sp
-where fields are:
+.IR "key " ,[ "key " ,...]
+.P
+The following key names can be used to match against device properties:

 .TP
 .B BUS
 Match the bus type of the device.
 .TP
 .B BUS
 Match the bus type of the device.


@@ -126,18 +126,20 @@ the key doesn't have any trailing whitespace characters by itself.
 Call external program. This key is valid if the program returns successful.
 The environment variables of
 .B udev
 Call external program. This key is valid if the program returns successful.
 The environment variables of
 .B udev

-are also available for the program.
+are also available to the program.

 .br
 The string returned by the program may be additionally matched with the
 .B RESULT
 .br
 The string returned by the program may be additionally matched with the
 .B RESULT

-key.
+key in the same or any later rule.

 .TP
 .B RESULT
 Match the returned string of the last
 .B PROGRAM
 .TP
 .B RESULT
 Match the returned string of the last
 .B PROGRAM

-call. This key may be used in any following rule after a
+call. This key can be used in the same or in any later rule after a

 .B PROGRAM
 call.
 .B PROGRAM
 call.

+.P
+The following keys can get values assigned:

 .TP
 .B NAME
 The name of the node to be created, or the name, the network interface
 .TP
 .B NAME
 The name of the node to be created, or the name, the network interface


@@ -162,6 +164,10 @@ The permissions for the device node. Every specified value overwrites the
 compiled-in default value.
 .TP
 .B OPTIONS
 compiled-in default value.
 .TP
 .B OPTIONS

+.B last_rule
+will be the last rule applied. No later rules will have any effect.
+.sp
+.B OPTIONS

 .B ignore_device
 will ignore this device. No node will be created.
 .sp
 .B ignore_device
 will ignore this device. No node will be created.
 .sp


@@ -240,31 +246,31 @@ the first three characters of the sysfs attribute.
 .sp
 .nf
 # if /sbin/scsi_id returns "OEM 0815", the device will be called disk1
 .sp
 .nf
 # if /sbin/scsi_id returns "OEM 0815", the device will be called disk1

-BUS="scsi", PROGRAM="/sbin/scsi_id", RESULT="OEM 0815", NAME="disk1"
+BUS=="scsi", PROGRAM=="/sbin/scsi_id", RESULT=="OEM 0815", NAME="disk1"

 
 # USB printer to be called lp_color
 
 # USB printer to be called lp_color

-BUS="usb", SYSFS{serial}="W09090207101241330", NAME="lp_color"
+BUS=="usb", SYSFS{serial}=="W09090207101241330", NAME="lp_color"

 
 # SCSI disk with a specific vendor and model number will be called boot
 
 # SCSI disk with a specific vendor and model number will be called boot

-BUS="scsi", SYSFS{vendor}="IBM", SYSFS{model}="ST336", NAME="boot%n"
+BUS=="scsi", SYSFS{vendor}=="IBM", SYSFS{model}=="ST336", NAME="boot%n"

 
 # sound card with PCI bus id 00:0b.0 to be called dsp
 
 # sound card with PCI bus id 00:0b.0 to be called dsp

-BUS="pci", ID="00:0b.0", NAME="dsp"
+BUS=="pci", ID=="00:0b.0", NAME="dsp"

 
 # USB mouse at third port of the second hub to be called mouse1
 
 # USB mouse at third port of the second hub to be called mouse1

-BUS="usb", ID="2.3", NAME="mouse1"
+BUS=="usb", ID=="2.3", NAME="mouse1"

 
 # ttyUSB1 should always be called pda with two additional symlinks
 
 # ttyUSB1 should always be called pda with two additional symlinks

-KERNEL="ttyUSB1", NAME="pda", SYMLINK="palmtop handheld"
+KERNEL=="ttyUSB1", NAME="pda", SYMLINK="palmtop handheld"

 
 # multiple USB webcams with symlinks to be called webcam0, webcam1, ...
 
 # multiple USB webcams with symlinks to be called webcam0, webcam1, ...

-BUS="usb", SYSFS{model}="XV3", NAME="video%n", SYMLINK="webcam%n"
+BUS=="usb", SYSFS{model}=="XV3", NAME=="video%n", SYMLINK="webcam%n"

 
 # grouping of optical drives from multiple kernel subsystems
 
 # grouping of optical drives from multiple kernel subsystems

-KERNEL="sr*", NAME="%k", SYMLINK="cdrom%e"
-KERNEL="scd*", NAME="%k", SYMLINK="cdrom%e"
-KERNEL="pcd*", NAME="%k", SYMLINK="cdrom%e"
-KERNEL="hd[a-z]", PROGRAM="/bin/cat /proc/ide/%k/media", RESULT="cdrom",
+KERNEL=="sr*", NAME="%k", SYMLINK="cdrom%e"
+KERNEL=="scd*", NAME="%k", SYMLINK="cdrom%e"
+KERNEL=="pcd*", NAME="%k", SYMLINK="cdrom%e"
+KERNEL=="hd[a-z]", PROGRAM=="/bin/cat /proc/ide/%k/media", RESULT=="cdrom",

   NAME="%k", SYMLINK="cdrom%e"
 .fi
 .P
   NAME="%k", SYMLINK="cdrom%e"
 .fi
 .P