populate

nmeamux/root/etc/hotplug.d/usbtty/usbtty.hotplug

@@ -0,0 +1,37 @@
+#!/bin/ash
+
+exec 1>/dev/console 2>&1
+
+P=/sys$DEVPATH
+[ -r $P/uevent ] && . $P/uevent
+
+# Exit unless proper type
+[ $SUBSYSTEM = "usb-serial"  -a -n "$DRIVER" ] || exit 0
+
+PATH="/sbin:/bin:/usr/sbin:/usr/bin"
+
+ME=${0##*/}
+say ()
+{
+    echo "$ME: $@"
+    logger -t $ME "$@"
+}
+
+MANU=$( ( test -r $P/../manufacturer && cat $P/../manufacturer ) || \
+        ( test -r $P/../../manufacturer && cat $P/../../manufacturer ) || echo "generic" )
+
+PORT=$( cat $P/port_number )
+DEV_NM="$DRIVER-$(cat $P/../../idVendor)-$(cat $P/../../idProduct)"
+DEVP=/dev/ttyusb/$DEV_NM
+
+if [ $ACTION = "add" ] ;then
+    mkdir -p $DEVP
+    ln -sf /dev/$MDEV $DEVP/$PORT
+    say "Add $DEVP/$PORT -> /dev/$MDEV MANU $MANU"
+elif [ $ACTION = "remove" ] ;then
+    rm -f /dev/ttyusb/$MANU/$DEV_NM/$PORT
+    say "Rem $DEVP/$PORT -> /dev/$MDEV MANU $MANU"
+else
+    say "Unknown action $ACTION for $MDEV $MANU $DEV_NM"
+fi
+