1 files changed, 29 insertions, 0 deletions

diff --git a/sys/dev/usb/queue.addendum.h b/sys/dev/usb/queue.addendum.h
new file mode 100644
index 0000000000000..9252342d797e6
--- /dev/null
+++ b/sys/dev/usb/queue.addendum.h
@@ -0,0 +1,29 @@
+/* These definitions are taken from the NetBSD /sys/sys/queue.h file
+ * The copyright as in /sys/sys/queue.h from FreeBSD applies (they are the same)
+ */
+
+/* This was called SIMPLEQ
+ */
+#ifndef STAILQ_HEAD_INITIALIZER
+#define STAILQ_HEAD_INITIALIZER(head)                                   \
+        { NULL, &(head).stqh_first }
+#endif
+
+/* This one was called SIMPLEQ_REMOVE_HEAD but removes not only the
+ * head element, but a whole queue of elements from the head.
+ */
+#ifndef STAILQ_REMOVE_HEAD_QUEUE
+#define STAILQ_REMOVE_HEAD_QUEUE(head, elm, field) do {                      \
+      if (((head)->stqh_first = (elm)->field.stqe_next) == NULL)      \
+              (head)->stqh_last = &(head)->stqh_first;                \
+} while (0)
+#endif
+
+
+/* This is called LIST and was called like that as well in the NetBSD version
+ */
+#ifndef LIST_HEAD_INITIALIZER
+#define LIST_HEAD_INITIALIZER(head)                                   \
+      { NULL }
+#endif
+