add $name substitution

udev.7

@@ -331,7 +331,7 @@ and
 \fBATTRS\fR\.
 .RE
 .PP
-\fB$driver\fR, \fB%d\fR
+\fB$driver\fR
 .RS 4
 The driver name of the device matched while searching the devpath upwards for
 \fBSUBSYSTEMS\fR,
@@ -373,6 +373,11 @@ The string returned by the external program requested with PROGRAM\. A single pa
 The node name of the parent device\.
 .RE
 .PP
+\fB$name\fR
+.RS 4
+The name of the device node\. The value is only set if an earlier rule assigned a value, or during a remove events\.
+.RE
+.PP
 \fB$root\fR, \fB%r\fR
 .RS 4
 The udev_root value\.

udev.xml

@@ -488,7 +488,7 @@
             </varlistentry>
 
             <varlistentry>
-              <term><option>$driver</option>, <option>%d</option></term>
+              <term><option>$driver</option></term>
               <listitem>
                 <para>The driver name of the device matched while searching the devpath upwards for
                   <option>SUBSYSTEMS</option>, <option>KERNELS</option>, <option>DRIVERS</option> and <option>ATTRS</option>.
@@ -547,6 +547,14 @@
               </listitem>
             </varlistentry>
 
+            <varlistentry>
+              <term><option>$name</option></term>
+              <listitem>
+                <para>The name of the device node. The value is only set if an earlier
+                rule assigned a value, or during a remove events.</para>
+              </listitem>
+            </varlistentry>
+
             <varlistentry>
               <term><option>$root</option>, <option>%r</option></term>
               <listitem>

udev_rules.c

@@ -606,6 +606,7 @@ void udev_rules_apply_format(struct udevice *udev, char *string, size_t maxsize)
 		SUBST_ATTR,
 		SUBST_PARENT,
 		SUBST_TEMP_NODE,
+		SUBST_NAME,
 		SUBST_ROOT,
 		SUBST_SYS,
 		SUBST_ENV,
@@ -627,6 +628,7 @@ void udev_rules_apply_format(struct udevice *udev, char *string, size_t maxsize)
 		{ .name = "sysfs",	.fmt = 's',	.type = SUBST_ATTR },
 		{ .name = "parent",	.fmt = 'P',	.type = SUBST_PARENT },
 		{ .name = "tempnode",	.fmt = 'N',	.type = SUBST_TEMP_NODE },
+		{ .name = "name",	.fmt = 'D',	.type = SUBST_NAME },
 		{ .name = "root",	.fmt = 'r',	.type = SUBST_ROOT },
 		{ .name = "sys",	.fmt = 'S',	.type = SUBST_SYS },
 		{ .name = "env",	.fmt = 'E',	.type = SUBST_ENV },
@@ -845,6 +847,10 @@ found:
 			strlcat(string, udev->tmp_node, maxsize);
 			dbg("substitute temporary device node name '%s'", udev->tmp_node);
 			break;
+		case SUBST_NAME:
+			strlcat(string, udev->name, maxsize);
+			dbg("substitute udev->name '%s'", udev->name);
+			break;
 		case SUBST_ROOT:
 			strlcat(string, udev_root, maxsize);
 			dbg("substitute udev_root '%s'", udev_root);

udevd.c

@@ -508,7 +508,7 @@ static int devpath_busy(struct udevd_uevent_msg *msg, int limit)
 			}
 	}
 
-	/* check runing-queue for still running events */
+	/* check run queue for still running events */
 	list_for_each_entry(loop_msg, &running_list, node) {
 		if (limit && childs_count++ > limit) {
 			dbg("%llu, maximum number (%i) of childs reached", msg->seqnum, childs_count);