[PATCH] add %P modifier to query the node name of the parent device

Events for partition devies may want to read the main block device
name to compose it's own name or read a disklabel from the main device.

SUBSYSTEM="block", KERNEL="*[1-9]", NAME="%P-p%n"
will append the partition number to the name of the main block device.

1 files changed, 3 insertions, 0 deletions

diff --git a/udev.8.in b/udev.8.in
index 51c55bc5a6..3fb4bdb8da 100644
--- a/udev.8.in
+++ b/udev.8.in
@@ -218,6 +218,9 @@ all remaining parts of the result string are substituted:
 The name of a created temporary device node to provide access to the
 device from a external program.
 .TP
+.B %P
+The node name of the parent device.
+.TP
 .BI %s{ filename }
 The content of a sysfs attribute.
 .TP