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|
#!/bin/sh
#
# Persistent naming for usb serial devices.
#
# Copyright 2013-2014 Christian Pointner <equinox@helsinki.at>
#
logger="logger -p daemon.info -t rhctl-usbserial"
idVendor=`echo $PRODUCT | awk -F '/' '{ print($1) }'`
idProduct=`echo $PRODUCT | awk -F '/' '{ print($2) }'`
bcdDevice=`echo $PRODUCT | awk -F '/' '{ print($3) }'`
if [ "$idVendor" != "403" ] || [ "$idProduct" != "6011" ]; then
exit 0
fi
DEVPATH="/sys$DEVPATH"
if [ $ACTION == "add" ]; then
if [ ! -e "$DEVPATH/bInterfaceNumber" ]; then
exit 0
fi
PARENT=`dirname "$DEVPATH`
SERIAL=`cat $PARENT/serial`
if [ "$SERIAL" != $(uci -q get rhctl.@global[0].ftdi_serial) ]; then
exit 0
fi
fi
hotplug=/dev/.hotplug
token=$hotplug/`echo $PRODUCT$DEVPATH | sed 's/\//=/g'`
case "$ACTION" in
add)
ttydir=`echo "$DEVPATH/ttyUSB*`
tty=`basename $ttydir`
interface=`cat "$DEVPATH/bInterfaceNumber"`
device="$interface"
case "$interface" in
00) device="ttyMasterCtl"
;;
01) device="ttyMasterHB"
;;
02) device="ttyStandbyCtl"
;;
03) device="ttyStandbyHB"
;;
*) exit 0
;;
esac
mkdir -p "$hotplug"
rm -f "/dev/$device" "$token"
ln -s "/dev/$device" "$token"
ln -s "/dev/$tty" "/dev/$device"
$logger "added: tty=$tty device=$device"
;;
remove)
if [ -h "$token" ]; then
device=$(ls -l $token | sed 's/.*-> //;/ /s/.*//')
case "$device" in
"") # no symlink
$logger "failed: token=$token device=$device"
;;
*)
rm -f $token $device
$logger "removed: $device"
;;
esac
fi
;;
esac
exit 0
|
