tdrkDev · May 28, 2025 21:37 · May 28, 2025 · May 28, 2025 · May 28, 2025
diff --git a/README.md b/README.md
@@ -0,0 +1,9 @@
+A solution to run Klipper with the printer connected to a Wi-Fi router, while the host may be in a different place at all.
+Code files contain comments for you to understand the installation process.
+
+On Keenetic router you must have Entware installed and have these packages installed:
+```
+opkg install usbip2 usbip2-client usbip2-server
+```
+
+On host you must have `usbip` tools installed.
diff --git a/S75usbipdevice b/S75usbipdevice
@@ -0,0 +1,24 @@
+#!/bin/sh
+# Service for hosting USB/IP server on Keenetic router with Entware.
+# We've used Keenetic Extra.
+#
+# Put this into /opt/etc/init.d/S75usbipdevice on router
+# Dont't forget to do chmod +x
+# Make sure there's no S74usbipd init.d script.
+
+###############
+# Settings
+VENDORID="1d50"
+DEVICEID="614e"
+###############
+
+PATH="/opt/bin:/opt/sbin:/opt/usr/bin:/opt/usr/sbin:/bin:/sbin:/usr/bin:/usr/sbin"
+
+usbipd -D &
+
+insmod /lib/modules/4.9-ndm-5/usbip-core.ko
+insmod /lib/modules/4.9-ndm-5/usbip-host.ko
+echo "/opt/bin/hotplug_trigger" > /proc/sys/kernel/hotplug
+
+BUSID=`usbip list -p -l | grep "$VENDORID:$DEVICEID" | cut -d '#' -f 1 | cut -d '=' -f 2 | xargs`
+[ ! -z "$BUSID" ] && usbip bind -b "$BUSID"
diff --git a/hotplug_trigger b/hotplug_trigger
@@ -0,0 +1,33 @@
+#!/bin/sh
+# Linux hotplug triggered script.
+#
+# Put this into /opt/bin/hotplug_trigger on router
+# Dont't forget to do chmod +x
+
+###############
+# Settings
+VENDORID="1d50"
+DEVICEID="614e"
+###############
+
+PATH="/opt/bin:/opt/sbin:/opt/usr/bin:/opt/usr/sbin:/bin:/sbin:/usr/bin:/usr/sbin"
+USBIP="/opt/sbin/usbip"
+
+case "$PRODUCT" in
+"$VENDORID/$DEVICEID"*)
+        if [ "$ACTION" = "add" ]; then
+		sleep 1
+		BUSID=`usbip list -p -l | grep "$VENDORID:$DEVICEID" | cut -d '#' -f 1 | cut -d '=' -f 2 | xargs`
+                echo "BUSID=$BUSID" >>/tmp/hotplug_bind.log
+		"$USBIP" bind -b "$BUSID" >>/tmp/hotplug_bind.log 2>&1
+        fi
+;;
+esac
+
+TS=`date "+%s"`
+{
+        echo "INTERFACE=$1";
+        echo "ACTION=$ACTION";
+        echo "PRODUCT=$PRODUCT";
+        echo "DATE=$TS";
+} >/tmp/last_hotplug.log
diff --git a/klipper.service b/klipper.service
@@ -0,0 +1,21 @@
+# Modified Klipper systemd service with USB/IP connection before Klipper start.
+# Klipper user - klipper
+
+[Unit]
+Description=Klipper 3D Printer Firmware SV1
+Documentation=https://www.klipper3d.org/
+After=network-online.target usbip-setup.service
+Wants=udev.target
+
+[Install]
+WantedBy=multi-user.target
+
+[Service]
+Type=simple
+User=klipper
+RemainAfterExit=yes
+WorkingDirectory=/var/lib/klipper/klipper
+EnvironmentFile=/var/lib/klipper/printer_data/systemd/klipper.env
+ExecStart=/var/lib/klipper/klippy-env/bin/python $KLIPPER_ARGS
+Restart=always
+RestartSec=10
diff --git a/usbip-setup b/usbip-setup
@@ -0,0 +1,38 @@
+#!/bin/bash
+# Script to connect to a USB device via USB/IP.
+# Don't forget to do chmod +x and fill in "HOST" variable
+#
+# Put this into /usr/bin/usbip-setup on host
+
+###############
+# Settings
+HOST="X.X.X.X"
+VENDORID="1d50"
+DEVICEID="614e"
+###############
+
+USBID="$VENDORID:$DEVICEID"
+
+while ! `nc -z "$HOST" 3240`; do
+        echo "Waiting for USB/IP..."
+        sleep 1
+done
+
+bus_id() {
+        usbip list -r "$HOST" -p | grep "$USBID" | cut -d ':' -f 1 | xargs
+}
+
+is_connected() {
+        lsusb -d "$USBID" >/dev/null && return 0
+        BUSID=`bus_id`
+        [ -z "$BUSID" ] && return 1
+        usbip attach -r "$HOST" -b "$BUSID" && return 0
+        return 1
+}
+
+while ! `is_connected`; do
+        echo "Retrying..."
+        sleep 1
+done
+
+echo "USB device has been connected"
diff --git a/usbip-setup.service b/usbip-setup.service
@@ -0,0 +1,13 @@
+# USB/IP service for Klipper
+
+[Unit]
+Description=USB/IP setup
+After=network-online.target
+Wants=udev.target
+
+[Install]
+WantedBy=multi-user.target
+
+[Service]
+Type=oneshot
+ExecStart=/usr/bin/usbip-setup
diff --git a/usbip.py b/usbip.py
@@ -4,6 +4,9 @@
 #
 # Uses ~/usbip.sh script where you may specify the script to connect
 # the MCU.
+# 
+# 1) Put this script into ~/klipper/klippy/extras/usbip.py on host
+# 2) Define [usbip] section in your printer.cfg
 #
 
 import os

diff --git a/usbip.sh b/usbip.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# Use common with systemd service script. Requires you
+# to allow klipper user to run "usbip-setup" without sudo password.
+#
+# Add this to sudoers:
+# klipper ALL = NOPASSWD: /usr/bin/usbip-setup,/usr/bin/usbip
+#
+# Where "klipper" is your klipper user.
+#
+# Put this into ~/usbip.sh on host
+# Don't forget to do chmod +x
+sudo usbip-setup
diff --git a/usbip.py b/usbip.py
@@ -20,7 +20,6 @@ def __init__(self, config):
         self.serial = config.getsection("mcu").get("serial")
 
         self.reconnecting = False
-        self.threads = []
 
         if not self._exists():
             self._handle_connect()

diff --git a/usbip.py b/usbip.py
@@ -0,0 +1,55 @@
+#
+# Klipper USB/IP integration module.
+# Author: Roman Rikhter <tdrkDev>
+#
+# Uses ~/usbip.sh script where you may specify the script to connect
+# the MCU.
+#
+
+import os
+import time
+
+class UsbIpSupport:
+    def __init__(self, config):
+        self.printer = config.get_printer()
+        self.gcode = self.printer.lookup_object("gcode")
+
+        self.printer.register_event_handler(
+            "klippy:disconnect", self._handle_disconnect)
+
+        self.serial = config.getsection("mcu").get("serial")
+
+        self.reconnecting = False
+        self.threads = []
+
+        if not self._exists():
+            self._handle_connect()
+
+    def _exists(self):
+        return os.access(self.serial, os.R_OK | os.W_OK)
+
+    def _connect(self):
+        if self._exists(): return
+
+        self.reconnecting = True
+        self._log("USB/IP: Connecting...")
+        os.system(os.environ.get("HOME") + "/usbip.sh")
+        self._log("USB/IP: Connected")
+        self.reconnecting = False
+
+    def _handle_disconnect(self):
+        if self.reconnecting: return
+        self._log("USB/IP: Reconnection due to a disconnect event")
+        time.sleep(0.25)
+        self._connect()
+
+    def _handle_connect(self):
+        if self.reconnecting: return
+        self._log("USB/IP: Initial connection")
+        self._connect()
+
+    def _log(self, msg):
+        self.gcode.respond_info(msg)
+
+def load_config(config):
+    return UsbIpSupport(config)
No results found