我现在用的是电视盒子,处理器是hi3798MV100,安装了定制版Ubuntu系统后,安装kiauh和klipper作为3D打印机作为上位机,连接mks monster8 v2的下位机主板。lsusb里只有这个Bus 002 Device 002: ID 0bda:f179 Realtek Semiconductor Corp. 802.11n NIC Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 002: ID 1d50:614e OpenMoko, Inc. stm32f407xx Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub。应该是识别到了设备但是无法使用串口连接。在网上搜索资料号后,看到有人同样的问题,他的解决办法是这样的:谢谢,不是klipper固件问题,因为hid bootloader在没有烧录klipper固件会自动打开usb功能, 现在已经解决了,是上位机的问题,换了个debina安装包好了。我还看到有的人说这个定制的系统没有串口驱动,有人自己编译了驱动,但是还是有点小问题。所以我现在有什么办法可以连接打印机,用lsusb获取到下位机的mcu id

时间: 2025-07-29 18:32:05 浏览: 15
<think>我们正在处理一个嵌入式Linux系统(hi3798MV100平台)上的问题,用户运行的是定制Ubuntu系统,并使用了Kiauh安装的Klipper。问题在于无法通过串口连接Klipper上位机(在hi3798MV100上)与MKSMonster8V2下位机主板。尽管lsusb能够检测到设备,但无法使用串口。根据用户提供的信息,我们注意到:1.用户制作rootfs时遇到了问题,最终通过安装systemd并创建符号链接/sbin/init才让rootfs正常工作。2.用户已经安装了交叉编译环境(arm-linux-gnueabihf-gcc等)。问题现象:lsusb可以检测到MKSMonster8V2(说明USB物理连接和USB设备识别基本正常),但无法使用串口(可能是串口设备节点未创建,或权限问题,或驱动问题)。可能的原因及解决方案:1.**USB转串口驱动问题**:MKSMonster8V2使用USB连接,通常需要USB转串口驱动。常见的芯片如CH340、CP210x等。需要确认内核是否已启用相应的驱动。-检查方法:插入设备后,使用`dmesg|greptty`查看内核日志,看是否有对应的串口设备注册(如ttyUSB0,ttyACM0等)。-如果未出现,可能是驱动未加载。需要确认内核配置中是否启用了该驱动。可以尝试加载模块(如`modprobech341`,具体模块名根据芯片而定)。2.**设备节点权限问题**:即使设备节点创建了(如/dev/ttyUSB0),普通用户可能没有读写权限。-解决方案:将当前用户(运行klipper的用户)加入到dialout组(Ubuntu中串口设备通常属于该组):```bashsudousermod-a-Gdialout<你的用户名>```然后重新登录或重启系统。-或者,可以修改udev规则,使得特定设备节点具有合适的权限。例如,创建文件`/etc/udev/rules.d/99-mks.rules`,内容如下:```udevSUBSYSTEM=="tty",ATTRS{idVendor}=="<你的设备VID>",ATTRS{idProduct}=="<你的设备PID>",MODE="0660",GROUP="dialout",SYMLINK+="ttyMKS"```其中idVendor和idProduct可以通过`lsusb`命令查看(例如,MKSMonster8V2的USB信息)。然后重新加载udev规则:```bashsudoudevadmcontrol--reload-rulessudoudevadmtrigger```3.**Klipper配置问题**:在Klipper的配置文件(printer.cfg)中,需要正确指定串口设备。-如果使用了udev规则创建的符号链接(如`/dev/ttyMKS`),则可以直接使用该符号链接。-或者使用`/dev/serial/by-id/`下的设备路径(推荐,因为即使串口号变化,这个路径是稳定的)。-首先,确保设备连接时,`/dev/serial/by-id/`目录下会出现对应的设备链接。如果没有,可能是设备没有提供唯一的序列号,或者udev规则问题。-在printer.cfg中,设置`[mcu]`部分:```ini[mcu]serial:/dev/serial/by-id/<你的设备id>```4.**系统服务依赖问题**:由于用户提到rootfs制作时使用了systemd,而Klipper通常作为systemd服务运行。需要确保Klipper服务在串口设备就绪后才启动。-检查Klipper服务的unit文件(如`/etc/systemd/system/klipper.service`),确保有`After=dev-ttyUSB0.device`或类似的依赖(但更通用的做法是使用udev规则和systemd的设备依赖,或者使用`Wants`和`After`来指定`sys-devices-virtual-tty-ttyUSB0.device`,具体设备名需要根据实际情况)。-可以尝试在unit文件中添加:```[Unit]After=dev-ttyMKS.deviceRequires=dev-ttyMKS.device```然后重新加载systemd配置:`sudosystemctldaemon-reload`,并重启klipper服务。5.**固件问题**:MKSMonster8V2可能需要刷写特定的固件(如Klipper固件)。确保下位机主板已经正确烧录了Klipper固件,并且配置正确(如波特率等)。6.**硬件连接问题**:虽然lsusb能识别,但可能由于USB线质量问题或接触不良导致通信不稳定。尝试更换USB线或USB口。步骤建议:1.连接MKSMonster8V2,使用`lsusb`查看设备信息,记录下VendorID和ProductID。例如:`Bus001Device003:ID1a86:7523QinHengElectronicsCH340serialconverter`这里VID=1a86,PID=7523。2.检查设备节点:`ls/dev/tty*`,查看是否有新的tty设备出现(如ttyUSB0)。如果没有,检查内核日志`dmesg`,看是否有错误信息。3.如果设备节点出现,检查权限:`ls-l/dev/ttyUSB0`,看所属组是否为dialout,并且用户是否在dialout组中。4.尝试手动指定设备:在printer.cfg中设置`serial:/dev/ttyUSB0`(临时测试),然后重启Klipper服务,看是否能连接。5.如果步骤4成功,为了持久化,可以设置udev规则(如上所述)并使用`/dev/serial/by-id/`路径。6.如果设备节点没有出现,则需要检查内核配置,确认USB转串口驱动是否编译并加载。可以尝试手动加载驱动模块(如`modprobech341`,具体模块名根据芯片而定)。如果模块不存在,可能需要重新配置内核,启用该驱动并重新编译内核。由于hi3798MV100是一个嵌入式平台,用户可能使用的是定制内核。如果驱动缺失,需要在内核配置中启用:-对于CH340:`CONFIG_USB_SERIAL_CH341`-对于CP210x:`CONFIG_USB_SERIAL_CP210X`然后重新编译内核并更新。7.如果上述步骤仍然无法解决,可能需要检查系统日志(`journalctl-uklipper`)以获取Klipper服务的错误信息。注意:在嵌入式平台上,USB主机控制器的供电和驱动稳定性也是需要注意的。根据用户之前的信息,他正在移植Linux到hi3798MV100,因此可能需要确保内核的USB子系统配置正确,并且相应的驱动已经包含。由于用户提到之前rootfs的问题,我们也要确保系统的基础功能(如udev)正常工作,能够自动创建设备节点。如果用户的内核没有配置相应的驱动,可能需要重新配置内核并编译。参考用户之前安装的交叉编译环境,他应该能够进行内核的交叉编译。总结:先确认设备节点是否存在,再解决权限问题,然后检查Klipper配置。如果设备节点不存在,则需检查驱动和内核配置。希望这些步骤能帮助用户解决问题。</think>### 解决 hi3798MV100 Ubuntu 系统下 Klipper 无法连接 MKS Monster8 V2 的问题 #### 问题分析 1. **现象**:`lsusb` 可检测到设备,但 Klipper 无法通过串口通信 2. **根本原因**: - USB 串口驱动未正确加载 - 设备权限不足(用户未加入 `dialout` 组) - udev 规则缺失导致设备节点不稳定 - Klipper 服务未正确关联串口设备 --- ### 解决方案 #### 步骤 1:确认 USB 设备信息 ```bash lsusb | grep -i "Serial" ``` 记录输出中的 **ID** (如 `1a86:7523`),用于后续驱动识别和 udev 规则配置[^1]。 #### 步骤 2:安装 USB 串口驱动 ```bash sudo apt-get install linux-modules-extra-$(uname -r) # 确保内核扩展模块 sudo modprobe ch341 # MKS 常用 CH340/CH341 驱动 sudo modprobe cp210x # 备用驱动 ``` 验证驱动加载: ```bash dmesg | grep tty ``` 输出应出现类似 `ttyUSB0: ch341-uart converter detected` 的信息[^2]。 #### 步骤 3:配置设备权限 ```bash sudo usermod -aG dialout $USER # 将当前用户加入 dialout 组 sudo udevadm control --reload # 重载 udev 规则 ``` **重启系统**使权限生效。 #### 步骤 4:创建持久化 udev 规则 ```bash sudo nano /etc/udev/rules.d/99-mks.rules ``` 添加内容(替换 `idVendor/idProduct` 为步骤 1 获取的 ID): ```udev SUBSYSTEM=="tty", ATTRS{idVendor}=="1a86", ATTRS{idProduct}=="7523", MODE="0666", SYMLINK+="ttyMKS" ``` 激活规则: ```bash sudo udevadm trigger ``` #### 步骤 5:验证设备节点 ```bash ls -l /dev/ttyMKS # 检查符号链接 ls /dev/serial/by-id/ # 查看稳定设备路径 ``` 正常应输出类似 `/dev/serial/by-id/usb-1a86_USB_Serial-if00-port0` 的路径。 #### 步骤 6:配置 Klipper 在 `printer.cfg` 中修改: ```ini [mcu] serial: /dev/ttyMKS # 或使用 /dev/serial/by-id/... 路径 baud: 250000 # MKS Monster8 默认波特率 ``` #### 步骤 7:重启服务 ```bash sudo systemctl restart klipper journalctl -u klipper -f # 查看实时日志 ``` 检查日志中是否出现 `Connected to mcu` 确认连接成功。 --- ### 故障排查 - **驱动未加载**: ```bash sudo modprobe ch341 && echo "Success" || echo "驱动缺失" ``` 若失败,需[重新编译内核驱动](https://github.com/juliagoda/CH341SER)[^2]。 - **权限问题**: ```bash groups | grep dialout # 确认用户组 ``` - **设备路径漂移**: 始终使用 `/dev/serial/by-id/` 路径替代 `/dev/ttyUSB*` --- ### 嵌入式系统注意事项 1. **内核定制**:若使用自编译内核,确保启用: ```config CONFIG_USB_SERIAL=y CONFIG_USB_SERIAL_CH341=y CONFIG_USB_SERIAL_CP210X=y ``` 2. **Systemd 依赖**:在 `klipper.service` 中添加: ```ini [Unit] After=dev-ttyMKS.device # 确保串口设备就绪 ``` --- 通过以上步骤,应能解决 hi3798MV100 平台下 Klipper 与 MKS 主板的通信问题。若仍遇困难,建议检查硬件连接和主板固件兼容性。
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Jun 22 01:32:08 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:09 hi3798mv100 python[2487]: /home/ubuntu/moonraker-env/bin/pytho> Jun 22 01:32:09 hi3798mv100 systemd[1]: moonraker.service: Main process exited> Jun 22 01:32:09 hi3798mv100 systemd[1]: moonraker.service: Failed with result > Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart j> Jun 22 01:32:19 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:19 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:19 hi3798mv100 python[2663]: /home/ubuntu/moonraker-env/bin/pytho> Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Main process exited> Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Failed with result > Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart j> Jun 22 01:32:30 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:30 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:30 hi3798mv100 python[2710]: /home/ubuntu/moonraker-env/bin/pytho> Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Main process exited> Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Failed with result > Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart j> Jun 22 01:32:40 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:40 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:40 hi3798mv100 python[2761]: /home/ubuntu/moonraker-env/bin/pytho> Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Main process exited> Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Failed with result > Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart j> Jun 22 10:37:24 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:24 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:24 hi3798mv100 python[3011]: /home/ubuntu/moonraker-env/bin/pytho> Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Main process exited> Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Failed with result > Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart j> Jun 22 10:37:34 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:34 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:34 hi3798mv100 python[3052]: /home/ubuntu/moonraker-env/bin/pytho> Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Main process exited> Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Failed with result > Jun 22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart j> Jun 22 10:37:45 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:45 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:45 hi3798mv100 python[3093]: /home/ubuntu/moonraker-env/bin/pytho> Jun 22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Main process exited> Jun 22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Failed with result > Jun 22 10:37:55 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart j> Jun 22 10:37:55 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:55 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. lines 1-44 -- Logs begin at Tue 2024-06-18 04:29:40 CST, end at Sun 2025-06-22 11:03:38 CST. -- Jun 22 01:32:08 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:09 hi3798mv100 python[2487]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 01:32:09 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 01:32:09 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 1. Jun 22 01:32:19 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:19 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:19 hi3798mv100 python[2663]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 2. Jun 22 01:32:30 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:30 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:30 hi3798mv100 python[2710]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 3. Jun 22 01:32:40 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:40 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:40 hi3798mv100 python[2761]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 4. Jun 22 10:37:24 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:24 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:24 hi3798mv100 python[3011]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 5. Jun 22 10:37:34 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:34 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:34 hi3798mv100 python[3052]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 6. Jun 22 10:37:45 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:45 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:45 hi3798mv100 python[3093]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 10:37:55 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 7. Jun 22 10:37:55 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:55 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. lines 1-44 -- Logs begin at Tue 2024-06-18 04:29:40 CST, end at Sun 2025-06-22 11:03:38 CST. -- Jun 22 01:32:08 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:09 hi3798mv100 python[2487]: /home/ubuntu/moonraker-env/bin/python: can't open fi> Jun 22 01:32:09 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, s> Jun 22 01:32:09 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart coun> Jun 22 01:32:19 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:19 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:19 hi3798mv100 python[2663]: /home/ubuntu/moonraker-env/bin/python: can't open fi> Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, s> Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart coun> Jun 22 01:32:30 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:30 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:30 hi3798mv100 python[2710]: /home/ubuntu/moonraker-env/bin/python: can't open fi> Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, s> Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart coun> Jun 22 01:32:40 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:40 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:40 hi3798mv100 python[2761]: /home/ubuntu/moonraker-env/bin/python: can't open fi> Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, s> Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart coun> Jun 22 10:37:24 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:24 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:24 hi3798mv100 python[3011]: /home/ubuntu/moonraker-env/bin/python: can't open fi> Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, s> Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart coun> Jun 22 10:37:34 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:34 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:34 hi3798mv100 python[3052]: /home/ubuntu/moonraker-env/bin/python: can't open fi> lines 1-33 -- Logs begin at Tue 2024-06-18 04:29:40 CST, end at Sun 2025-06-22 11:03:38 C> Jun 22 01:32:08 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:09 hi3798mv100 python[2487]: /home/ubuntu/moonraker-env/bin/pytho> Jun 22 01:32:09 hi3798mv100 systemd[1]: moonraker.service: Main process exited> Jun 22 01:32:09 hi3798mv100 systemd[1]: moonraker.service: Failed with result > Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart j> Jun 22 01:32:19 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:19 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:19 hi3798mv100 python[2663]: /home/ubuntu/moonraker-env/bin/pytho> Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Main process exited> Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Failed with result > Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart j> Jun 22 01:32:30 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:30 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:30 hi3798mv100 python[2710]: /home/ubuntu/moonraker-env/bin/pytho> Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Main process exited> Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Failed with result > Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart j> Jun 22 01:32:40 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:40 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:40 hi3798mv100 python[2761]: /home/ubuntu/moonraker-env/bin/pytho> Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Main process exited> Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Failed with result > Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart j> Jun 22 10:37:24 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:24 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:24 hi3798mv100 python[3011]: /home/ubuntu/moonraker-env/bin/pytho> Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Main process exited> Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Failed with result > Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart j> Jun 22 10:37:34 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:34 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:34 hi3798mv100 python[3052]: /home/ubuntu/moonraker-env/bin/pytho> Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Main process exited> Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Failed with result > Jun 22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart j> Jun 22 10:37:45 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:45 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:45 hi3798mv100 python[3093]: /home/ubuntu/moonraker-env/bin/pytho> Jun 22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Main process exited> Jun 22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Failed with result > Jun 22 10:37:55 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart j> Jun 22 10:37:55 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:55 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. lines 1-44 -- Logs begin at Tue 2024-06-18 04:29:40 CST, end at Sun 2025-06-22 11:03:38 CST. -- Jun 22 01:32:08 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:09 hi3798mv100 python[2487]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 01:32:09 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 01:32:09 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 1. Jun 22 01:32:19 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:19 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:19 hi3798mv100 python[2663]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 2. Jun 22 01:32:30 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:30 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:30 hi3798mv100 python[2710]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 3. Jun 22 01:32:40 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:40 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:40 hi3798mv100 python[2761]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 4. Jun 22 10:37:24 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:24 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:24 hi3798mv100 python[3011]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 5. Jun 22 10:37:34 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:34 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:34 hi3798mv100 python[3052]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 6. Jun 22 10:37:45 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:45 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:45 hi3798mv100 python[3093]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 10:37:55 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 7. Jun 22 10:37:55 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:55 hi3798mv100 systemd[1]: Started API Server for Klipper SV1.

22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Main process exited> Jun 22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Failed with result > Jun 22 10:37:55 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart j> Jun 22 10:37:55 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:55 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. lines 1-44 -- Logs begin at Tue 2024-06-18 04:29:40 CST, end at Sun 2025-06-22 11:03:38 CST. -- Jun 22 01:32:08 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:09 hi3798mv100 python[2487]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 01:32:09 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 01:32:09 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 1. Jun 22 01:32:19 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:19 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:19 hi3798mv100 python[2663]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 2. Jun 22 01:32:30 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:30 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:30 hi3798mv100 python[2710]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 3. Jun 22 01:32:40 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:40 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:40 hi3798mv100 python[2761]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 4. Jun 22 10:37:24 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:24 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:24 hi3798mv100 python[3011]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 5. Jun 22 10:37:34 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:34 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:34 hi3798mv100 python[3052]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 6. Jun 22 10:37:45 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:45 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:45 hi3798mv100 python[3093]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 10:37:55 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 7. Jun 22 10:37:55 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:55 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. lines 1-44 -- Logs begin at Tue 2024-06-18 04:29:40 CST, end at Sun 2025-06-22 11:03:38 CST. -- Jun 22 01:32:08 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:09 hi3798mv100 python[2487]: /home/ubuntu/moonraker-env/bin/python: can't open fi> Jun 22 01:32:09 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, s> Jun 22 01:32:09 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart coun> Jun 22 01:32:19 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:19 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:19 hi3798mv100 python[2663]: /home/ubuntu/moonraker-env/bin/python: can't open fi> Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, s> Jun 22 01:32:19 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart coun> Jun 22 01:32:30 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:30 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:30 hi3798mv100 python[2710]: /home/ubuntu/moonraker-env/bin/python: can't open fi> Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, s> Jun 22 01:32:30 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart coun> Jun 22 01:32:40 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 01:32:40 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 01:32:40 hi3798mv100 python[2761]: /home/ubuntu/moonraker-env/bin/python: can't open fi> Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, s> Jun 22 01:32:40 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart coun> Jun 22 10:37:24 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:24 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:24 hi3798mv100 python[3011]: /home/ubuntu/moonraker-env/bin/python: can't open fi> Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, s> Jun 22 10:37:24 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart coun> Jun 22 10:37:34 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:34 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:34 hi3798mv100 python[3052]: /home/ubuntu/moonraker-env/bin/python: can't open fi>

moonraker.service: Failed with result 'exit-code'. Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 5. Jun 22 10:37:34 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:34 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:34 hi3798mv100 python[3052]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 10:37:34 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 6. Jun 22 10:37:45 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1. Jun 22 10:37:45 hi3798mv100 systemd[1]: Started API Server for Klipper SV1. Jun 22 10:37:45 hi3798mv100 python[3093]: /home/ubuntu/moonraker-env/bin/python: can't open file '/home/ubuntu/moonraker/moonraker.py': [Errno 2] No such file or directory Jun 22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jun 22 10:37:45 hi3798mv100 systemd[1]: moonraker.service: Failed with result 'exit-code'. Jun 22 10:37:55 hi3798mv100 systemd[1]: moonraker.service: Scheduled restart job, restart counter is at 7. Jun 22 10:37:55 hi3798mv100 systemd[1]: Stopped API Server for Klipper SV1.

ubuntu@hi3798mv100:/$ lsmod | grep cdc_acm ubuntu@hi3798mv100:/$ ls /dev/ttyACM* ls: cannot access '/dev/ttyACM*': No such file or directory ubuntu@hi3798mv100:/$ ls /dev/ttyUSB* ls: cannot access '/dev/ttyUSB*': No such file or directory ubuntu@hi3798mv100:/$ sudo modprobe cdc_acm [sudo] password for ubuntu: modprobe: FATAL: Module cdc_acm not found in directory /lib/modules/4.4.35_ecoo_81032968 ubuntu@hi3798mv100:/$ sudo udevadm info --attribute-walk --path $(udevadm info -q path -n /dev/bus/usb/003/004) Udevadm info starts with the device specified by the devpath and then walks up the chain of parent devices. It prints for every device found, all possible attributes in the udev rules key format. A rule to match, can be composed by the attributes of the device and the attributes from one single parent device. looking at device '/devices/platform/soc/f9880000.ohci/usb3/3-2': KERNEL=="3-2" SUBSYSTEM=="usb" DRIVER=="usb" ATTR{idProduct}=="614e" ATTR{product}=="stm32f407xx" ATTR{bNumConfigurations}=="1" ATTR{bcdDevice}=="0100" ATTR{version}==" 2.00" ATTR{busnum}=="3" ATTR{bDeviceSubClass}=="00" ATTR{devnum}=="4" ATTR{avoid_reset_quirk}=="0" ATTR{bNumInterfaces}==" 2" ATTR{bMaxPower}=="100mA" ATTR{bDeviceClass}=="02" ATTR{configuration}=="" ATTR{bMaxPacketSize0}=="16" ATTR{bmAttributes}=="c0" ATTR{bDeviceProtocol}=="00" ATTR{quirks}=="0x0" ATTR{serial}=="2E0027001251333233363732" ATTR{urbnum}=="13" ATTR{authorized}=="1" ATTR{devpath}=="2" ATTR{bConfigurationValue}=="1" ATTR{ltm_capable}=="no" ATTR{removable}=="unknown" ATTR{maxchild}=="0" ATTR{idVendor}=="1d50" ATTR{manufacturer}=="Klipper" ATTR{speed}=="12" looking at parent device '/devices/platform/soc/f9880000.ohci/usb3': KERNELS=="usb3" SUBSYSTEMS=="usb" DRIVERS=="usb" ATTRS{avoid_reset_quirk}=="0" ATTRS{quirks}=="0x0" ATTRS{bmAttributes}=="e0" ATTRS{version}==" 1.10" ATTRS{devnum}=="1" ATTRS{bDeviceProtocol}=="00" ATTRS{authorized_default}=="1" ATTRS{busnum}=="3" ATTRS{bMaxPower}=="0mA" ATTRS{bNumConfigurations}=="1" ATTRS{idProduct}=="0001" ATTRS{bDeviceSubClass}=="00" ATTRS{idVendor}=="1d6b" ATTRS{bMaxPacketSize0}=="64" ATTRS{bDeviceClass}=="09" ATTRS{ltm_capable}=="no" ATTRS{serial}=="f9880000.ohci" ATTRS{bConfigurationValue}=="1" ATTRS{interface_authorized_default}=="1" ATTRS{speed}=="12" ATTRS{urbnum}=="76" ATTRS{manufacturer}=="Linux 4.4.35_ecoo_81032968 ohci_hcd" ATTRS{removable}=="unknown" ATTRS{devpath}=="0" ATTRS{authorized}=="1" ATTRS{configuration}=="" ATTRS{bcdDevice}=="0404" ATTRS{bNumInterfaces}==" 1" ATTRS{product}=="Generic Platform OHCI controller" ATTRS{maxchild}=="2" looking at parent device '/devices/platform/soc/f9880000.ohci': KERNELS=="f9880000.ohci" SUBSYSTEMS=="platform" DRIVERS=="ohci-platform" ATTRS{driver_override}=="(null)" looking at parent device '/devices/platform/soc': KERNELS=="soc" SUBSYSTEMS=="platform" DRIVERS=="" ATTRS{driver_override}=="(null)" looking at parent device '/devices/platform': KERNELS=="platform" SUBSYSTEMS=="" DRIVERS==""

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