man: clarify $attr{} parent searching

[elogind.git] / udev.7

diff --git a/udev.7 b/udev.7
index a09bdf9ec7582024988b7fedcd8bbea62dfad64c..e7de82ea0736316934e7ee659e6f50e6e6d83672 100644 (file)
--- a/udev.7
+++ b/udev.7
@@ -105,6 +105,11 @@ Match the devpath of the event device\.
 Match the name of the event device\.
 .RE
 .PP
+\fBNAME\fR
+.RS 4
+Match the name of the node or network interface\. It can be used once the NAME key has been set in one of the preceding rules\.
+.RE
+.PP
 \fBSUBSYSTEM\fR
 .RS 4
 Match the subsystem of the event device\.
@@ -352,7 +357,7 @@ and
 .PP
 \fB$attr{\fR\fB\fIfile\fR\fR\fB}\fR, \fB%s{\fR\fB\fIfile\fR\fR\fB}\fR
 .RS 4
-The value of a sysfs attribute found at the device, where all keys of the rule have matched\. If the matching device does not have such an attribute, all devices along the chain of parents are searched for a matching attribute\. If the attribute is a symlink, the last element of the symlink target is returned as the value\.
+The value of a sysfs attribute found at the device, where all keys of the rule have matched\. If the matching device does not have such an attribute, follow the chain of parent devices and use the value of the first attribute that matches\. If the attribute is a symlink, the last element of the symlink target is returned as the value\.
 .RE
 .PP
 \fB$env{\fR\fB\fIkey\fR\fR\fB}\fR, \fB%E{\fR\fB\fIkey\fR\fR\fB}\fR