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+JVdG USB Gadget
+Copyright 2011 Julien Viard de Galbert <>
+This is my tiny project to learn on Linux driver development.
+The hardware schematics is available in gEDA gschem format
+and is licenced under GPL-2 or later.
+The AVR firmware requires USBtiny from Dick Streefland <>
+available at
+It was tested with version 1.6.
+Simply add a link to it's usbtiny directory or update the location in the Makefile to build it:
+$ ln -s ../usbtiny-1.6/usbtiny
+The firware is available under GPL-2 or later as well.
+To check the device there is an USBlib (1.0) application in the test/ directory
+it is also available under GPL-2 or later.
+You will need to add a file in /etc/udev/rules.d in order to access the device.
+Here is mine:
+$ cat /etc/udev/rules.d/70-usb-prototype.rules
+SUBSYSTEM=="usb", ATTR{idVendor}=="6666", GROUP="julien", MODE="0666"
+Or you can run as root...
+Finally the linux driver is available in the linux_driver directory.
+It is licenced as GPL-2 like the kernel and is based on some tutorials
+from the web:
+ - by Valerie Henson
+ - by Greg Kroah-Hartman
+The driver is very basic, it only show some files under sysfs that reflect the
+device state.