/opt/etc/init.d/S11KeyspanDriver

 

#!/bin/sh
#
# Start the Keyspan Serial Port Driver
#

# Create the kit directory if required

if [ ! -d /opt/keyspan ]; then
    mkdir /opt/keyspan
fi

# Check to see if startup is inhibited.  Exit silently if so.

if [ -e /opt/keyspan/.noserial ]; then
    exit
fi

# Don't disturb running drivers unless function is "reload"

if [ "$1" != 'reload' ]; then
    if [ "`/sbin/lsmod | grep 'keyspan' | \
 sed  -e'N;s/[0-9]*//g;s/[ \n]*/ /g'`" = ' keyspan (unused) usbserial [keyspan] ' ]; then
        echo "Keyspan: already loaded"
        exit
    fi
fi

# Download drivers if needed.  Only do this once.
# .downloaded is used to allow common image NSLU2 kits

if [ ! -e /opt/keyspan/.downloaded ]; then
    echo "Keyspan: drivers not installed, downloading..."
    if wget -q http://users.dls.net/~mwester/unslung/keyspan.o -O/opt/keyspan/keyspan.o && \
       wget -q http://users.dls.net/~mwester/unslung/usbserial.o -O/opt/keyspan/usbserial.o ; then
        touch /opt/keyspan/.downloaded
    fi
fi

# Make sure both modules are present

if [ ! -e /opt/keyspan/keyspan.o ]; then
    echo "Keyspan: kit not installed"
    exit
fi
if [ ! -e /opt/keyspan/usbserial.o ]; then
    echo "Keyspan: kit not installed"
    exit
fi

# Identify the active kernel module library

KLIB="/lib/modules/`cat /proc/sys/kernel/osrelease`/kernel/drivers/usb/serial"

# Unload the distributed usbserial (it's missing a couple of routines)

if [ "`/sbin/lsmod | grep keyspan`" != '' ]; then
    echo "Keyspan: unloading Keyspan port driver"
    /sbin/rmmod keyspan
fi
if [ "`/sbin/lsmod | grep usbserial`" != '' ]; then
    echo "Keyspan: unloading USB serial port class driver"
    /sbin/rmmod usbserial
fi

# Backup the distributed version, just in case

if [ ! -e $KLIB/usbserial-v55.o ]; then
    echo "Keyspan: backing-up standard usbserial as usbserial-v55"
    mv $KLIB/usbserial.o $KLIB/usbserial-v55.o
fi

# Install the new drivers

echo "Keyspan: loading drivers"
cp /opt/keyspan/usbserial.o $KLIB/
cp /opt/keyspan/keyspan.o $KLIB/

insmod usbserial
insmod keyspan

# The serial ports appear as /dev/ttyUSB{0-n}

#EOF