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2005-10-18
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3KB
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110 lines
#!/bin/sh
#
# serial 1.43 2004/07/01 17:26:26 (David Hinds)
#
# Initialize or shutdown a PCMCIA serial device
#
# The first argument should be either 'start' or 'stop'. The second
# argument is the base name for the device.
#
# The script passes an extended device address to 'serial.opts' in the
# ADDRESS variable, to retrieve device-specific configuration options.
# The address format is "scheme,socket,instance" where "scheme" is the
# PCMCIA configuration scheme, "socket" is the socket number, and
# "instance" is used to number multiple ports on a single card.
#
if [ -r ./shared ] ; then . ./shared ; else . /etc/pcmcia/shared ; fi
# Get device attributes
get_info $DEVICE
# Load site-specific settings
ADDRESS="$SCHEME,$SOCKET,$INSTANCE"
start_fn () { return; }
stop_fn () { return; }
. $0.opts
# Newer kernels deprecate use of "cua" devices, but we need to
# keep track of them anyway, if the device files are present
NR=`expr $MINOR - 64`
if [ -c /dev/cua1 ] ; then
CALLOUT=cua$NR
else
CALLOUT=$DEVICE
fi
case "$ACTION" in
'start')
[ -n "$VERBOSE" -a -n "$INFO" ] && echo "$INFO"
if [ ! -c /dev/$DEVICE ] ; then
cd /dev ; log ./MAKEDEV $DEVICE
fi
if [ -n "$LINK" ] ; then
if [ -L $LINK ] ; then rm $LINK ; fi
if match `uname -r` "2.[2-9].*" ; then
ln -s /dev/$DEVICE $LINK
else
ln -s /dev/$CALLOUT $LINK
fi
fi
if [ -x /bin/setserial ] ; then
# Workaround for serial driver bug
IRQ=`setserial /dev/$DEVICE | sed -e 's/.*IRQ: //'`
setserial /dev/$DEVICE irq 0 ; setserial /dev/$DEVICE irq $IRQ
if [ -n "$SERIAL_OPTS" ] ; then
log setserial /dev/$DEVICE $SERIAL_OPTS
fi
fi
if [ -n "$INITTAB" ] ; then
echo "S$NR:12345:respawn:$INITTAB $DEVICE" >> /etc/inittab
telinit q
fi
start_fn $DEVICE
;;
'check')
is_true $NO_CHECK && exit 0
if [ -n "$INITTAB" ] ; then
do_fuser -v /dev/$DEVICE /dev/$CALLOUT $LINK | grep -v getty \
| grep -q /dev/$DEVICE && exit 1
else
do_fuser -s /dev/$DEVICE /dev/$CALLOUT $LINK && exit 1
fi
;;
'cksum')
chk_simple "$NEW_SCHEME,$SOCKET,$INSTANCE" || exit 1
;;
'stop')
if [ -n "$INITTAB" ] ; then
grep -v $DEVICE /etc/inittab > /etc/inittab.new
mv /etc/inittab.new /etc/inittab
telinit q
fi
do_fuser -k /dev/$DEVICE /dev/$CALLOUT $LINK > /dev/null
if [ -L "$LINK" ] ; then rm $LINK ; fi
stop_fn $DEVICE
;;
'suspend')
do_fuser -k -STOP /dev/$DEVICE /dev/$CALLOUT > /dev/null
;;
'resume')
if [ -n "$SERIAL_OPTS" ] ; then
setserial /dev/$DEVICE $SERIAL_OPTS
fi
do_fuser -k -CONT /dev/$DEVICE /dev/$CALLOUT $LINK > /dev/null
;;
*)
usage
;;
esac
exit 0