Load Serial Drivers Automatically Using udev

From PlugWiki

With this configuration udev will automatically load the driver for the console/JTAG port and make it recognize the Sheevaplug. These rules will become unnecessary when the Sheevaplug VID and PID will be added to the mainline kernel.

Create the file /etc/udev/rules.d/85-sheevaplug.rules with this content:

# if no driver has claimed the interface yet, load ftdi_sio
ACTION=="add", SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_interface", \
        ATTRS{idVendor}=="9e88", ATTRS{idProduct}=="9e8f", \
        DRIVER=="", \
        RUN+="/sbin/modprobe -b ftdi_sio"

# add the sheevaplug VID and PID to the list of devices supported by ftdi_sio
ACTION=="add", SUBSYSTEM=="drivers", \
        ENV{DEVPATH}=="/bus/usb-serial/drivers/ftdi_sio", \
        ATTR{new_id}="9e88 9e8f"

# optionally create a convenience symlink for the console device
ACTION=="add", KERNEL=="ttyUSB*", \
        ATTRS{interface}=="SheevaPlug JTAGKey FT2232D B", \
        ATTRS{bInterfaceNumber}=="01", \
        SYMLINK+="sheevaplug"