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#Function to toggle wireless interfaces originaly created by Paul Sladen for Ubuntu acpi-support package
for DEVICE in /sys/class/net/* ; do
if [ -d $DEVICE/wireless ] ; then
# $DEVICE is a wireless device.
FOUND=
# Yes, that's right... the new interface reverses the truth values.
ON=1
OFF=0
for CONTROL in $DEVICE/device/rfkill/rfkill*/state; do
if [ -w "$CONTROL" ]; then
FOUND=1
if [ "$(cat "$CONTROL")" = "$ON" ] ; then
# It's powered on. Switch it off.
echo -n "$OFF" > "$CONTROL"
else
# It's powered off. Switch it on.
echo -n "$ON" > "$CONTROL"
fi
fi
done
# it might be safe to assume that a device only supports one
# interface at a time; but just in case, we short-circuit
# here to avoid toggling the power twice
if [ -n "$FOUND" ]; then
continue
fi
ON=0
OFF=1 # 1 for rf_kill, 2 for power/state
for CONTROL in $DEVICE/device/rf_kill $DEVICE/device/power/state ; do
if [ -w $CONTROL ] ; then
# We have a way of controlling the device, lets try
if [ "`cat $CONTROL`" = 0 ] ; then
# It's powered on. Switch it off.
if echo -n $OFF > $CONTROL ; then
break
else
OFF=2 # for power/state, second time around
fi
else
# It's powered off. Switch it on.
if echo -n $ON > $CONTROL ; then
break
fi
fi
fi
done
fi
done