usb: renesas_usbhs: fixup comment-out

[pandora-kernel.git] / drivers / usb / renesas_usbhs / common.c

diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index 665259a..d8239e5 100644 (file)
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -21,6 +21,29 @@
 #include <linux/sysfs.h>
 #include "./common.h"
 
+/*
+ *             image of renesas_usbhs
+ *
+ * ex) gadget case
+
+ * mod.c
+ * mod_gadget.c
+ * mod_host.c          pipe.c          fifo.c
+ *
+ *                     +-------+       +-----------+
+ *                     | pipe0 |------>| fifo pio  |
+ * +------------+      +-------+       +-----------+
+ * | mod_gadget |=====> | pipe1 |--+
+ * +------------+      +-------+  |    +-----------+
+ *                     | pipe2 |  |  +-| fifo dma0 |
+ * +------------+      +-------+  |  | +-----------+
+ * | mod_host   |      | pipe3 |<-|--+
+ * +------------+      +-------+  |    +-----------+
+ *                     | ....  |  +--->| fifo dma1 |
+ *                     | ....  |       +-----------+
+ */
+
+
 #define USBHSF_RUNTIME_PWCTRL  (1 << 0)
 
 /* status */