diff -uNr libusb-1.0.9-orig/libusb/os/linux_usbfs.h libusb-1.0.9/libusb/os/linux_usbfs.h
--- libusb-1.0.9-orig/libusb/os/linux_usbfs.h	2012-04-20 10:44:27.000000000 +0400
+++ libusb-1.0.9/libusb/os/linux_usbfs.h	2012-06-20 14:23:14.262036580 +0400
@@ -80,7 +80,7 @@
 };
 
 #define MAX_ISO_BUFFER_LENGTH		32768
-#define MAX_BULK_BUFFER_LENGTH		16384
+#define MAX_BULK_BUFFER_LENGTH		1048576
 #define MAX_CTRL_BUFFER_LENGTH		4096
 
 struct usbfs_urb {