This is a project started with Thibault North which aims to write a Linux driver for the scanner Canoscan 5000F (USB connection).

USB documentation

• Linux USB
• usb.org (here developer documents)
• An Overview of Linux USB
• usbdeveloper.com

Scanner

• SANE: Scanner Access Now Easy (entry in SANE database for Canoscan 5000F)
• Genesys Backend
• Datasheets
• How to sniff
• UsbMon (Windows only)

USB tool

• UsbSnoop: Usb 'sniffer' (only for Windows)
• usbsnoop2libusb.pl (perl script)
• Usefull urls
• libusb
• FreeBSD USB: mailing list

Other

• Canoscan5000F free driver project (gna.org)
• Canon fb630u driver
• Question "How to write a scanner driver" on linuxfr.org
• Programming Guide for Linux USB Device Drivers (looks old, 2000?)
• Reverse engineering Windows USB device drivers (for the purpose of creating compatible device drivers for Linux)
• USBMon: Sniffer for Linux (kernel patch + Java UI)

usbmon (Linux)

To dump USB trafic on Linux, you need usbmon module which exists since Linux 2.6.11. Get more information in Linux documentation: /usr/src/linux/Documentation/usb/usbmon.txt

To get usbmon, you need a Linux kernel with debugfs support (CONFIG_DEBUG_FS=y). After that, use following commands:

# mount -t debugfs none_debugs /sys/kernel/debug
# modprobe usbmon

Verify that bus sockets are present.

[root@lembas zaitcev]# ls /sys/kernel/debug/usbmon
1s  1t  2s  2t  3s  3t  4s  4t

A tool does exist to display these dumps: USBMon (see also [old website), program written in Java.

This project started with Dave Harding, a student who patched Linux Kernel (in 2002). Then Pete Zaitcev reused its code and convert it as small patch + kernel module. He also improved Java user interface.