2009 MAR 04
  fixed checksum failed USB DATA should be Addr(4) + Size(4) + Data(n) + CS(2) you can ref usbt-otg-hs.c
  use u8 for u16_checksum creator
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DNW kernel mode driver 
v1.1 almost working on SAMSUNG 6410
[0]Usage
*\>sudo insmod dnw.ko
*\>dnw-send(command mode) or dnw_cmd(GUI mode) 
*Note:To edit ~/.dnwrc ,~/.dnwrc0

[1]Data Flow
*USB Host(X86) <-- DNW_OTG(S3C)

[2]Packet Format
*(RAM addr)(file size+8)(file content)
e.g.
00 00 E0 57 50 01 00 00 13 00 00 EA ... ...
---RAMAddr- --file LEN- ---image content---

[3]USB data capture from USB Monitor(USB Analyzer).
*Refer to s3c-otg.txt

[4]USB proc information and debug monitor in Linux kernel
*proc information
\>sudo mount -t usbfs none /proc/bus/usb/
*debug monitor
\>sudo insmod usbmon
\>sudo mount -t debugfs none_debugs /sys/kernel/debug/
\>sudo cat /sys/kernel/debug/usbmon/5t > /tmp/usb_debug.log & 


if you have problem for .dnwrc 
cp dnwrc to ~/.dnwrc