[PATCH] update default config file with a CALLOUT rule, and more documentation.

[elogind.git] / udev.config

diff --git a/udev.config b/udev.config
index 324c11e55f2aff170528497c8b8d27f02f4e4bb7..3eb688a3a0b5fcc4ae2a730452a36a6ca5ace7e9 100644 (file)
--- a/udev.config
+++ b/udev.config
@@ -1,12 +1,18 @@
-# There are a number of modifiers that are allowed to be used in the NAME field.
+# There are a number of modifiers that are allowed to be used in the NAME or PROGRAM fields.
 # They provide the following subsitutions:
 # %n - the "kernel number" of the device.
 #      for example, 'sda3' has a "kernel number" of '3'
 # %M - the kernel major number for the device
 # %m - the kernel minor number for the device
+# %b - the bus id for the device
+# %c - the return value for the CALLOUT program (note, this doesn't work within
+#      the PROGRAM field for the obvious reason.)
 #
 
-# My usb camera...
+# Looking for scsi bus id 42:0:0:1
+CALLOUT, BUS="scsi", PROGRAM="/bin/echo -n test-%b", ID="test-42:0:0:1", NAME="%c"
+
+# A usb camera.
 LABEL, BUS="usb", vendor="FUJIFILM", NAME="camera%n"
 
 # USB Epson printer to be called lp_epson
@@ -30,5 +36,5 @@ TOPOLOGY, BUS="usb", place="2.4", NAME="mouse2"
 
 # ttyUSB1 should always be called visor
 REPLACE, KERNEL="ttyUSB1", NAME="visor"
-#REPLACE, KERNEL="ttyUSB0", NAME="pl2303"
+REPLACE, KERNEL="ttyUSB0", NAME="pl2303"