1 files changed, 6 insertions, 1 deletions

diff --git a/include/linux/usb.h b/include/linux/usb.h
index 5482bfb3303d..e5cb1690975a 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -313,8 +313,13 @@ struct usb_bus {
 /* This is arbitrary.
  * From USB 2.0 spec Table 11-13, offset 7, a hub can
  * have up to 255 ports. The most yet reported is 10.
+ *
+ * Current Wireless USB host hardware (Intel i1480 for example) allows
+ * up to 22 devices to connect. Upcoming hardware might raise that
+ * limit. Because the arrays need to add a bit for hub status data, we
+ * do 31, so plus one evens out to four bytes.
  */
-#define USB_MAXCHILDREN         (16)
+#define USB_MAXCHILDREN         (31)
 
 struct usb_tt;