--- puppy/usb_io.h.~1.14.~	2007-02-01 16:39:20.000000000 +1030
+++ puppy/usb_io.h	2007-03-23 11:47:21.000000000 +1030
@@ -30,12 +30,13 @@
 #include <linux/types.h>
 #include <linux/version.h>
 
-#include <linux/usb.h>
-#include <linux/usbdevice_fs.h>
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+/* linux/usb_ch9.h wasn't separated out until 2.4.23 */
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,23)
 #include "usb_ch9.h"
+#else
+#include "usb.h"
 #endif
+#include <linux/usbdevice_fs.h>
 
 #include "mjd.h"
 #include "tf_bytes.h"