我在这台机器上插上了一台热敏打印机,通过USB到串行:
[422487.983278] usb 1-7: new full-speed USB device number 32 using xhci_hcd
[422489.500951] usb 1-7: New USB device found, idVendor=1c8a, idProduct=3011
[422489.500957] usb 1-7: New USB device strings: Mfr=1, Product=2, SerialNumber=6
[422489.500961] usb 1-7: Product: USB To Serial Interface
[422489.500964] usb 1-7: Manufacturer: SWEDA
[422489.500967] usb 1-7: SerialNumber: 0000000000022
[422489.503978] cdc_acm 1-7:1.0: ttyACM0: USB ACM deviceIt定位打印
AT#PORTCFG?在热纸上。
我猜有什么东西在向港口发送命令。
对如何避免它有什么想法吗?
Ubuntu 18.04.3
发布于 2020-08-15 21:49:02
我面对这个问题,找到了一个用暴力解决问题的办法:
# grep -r PORTCFG
Binary file lib/x86_64-linux-gnu/ModemManager/libmm-plugin-telit.so matches
Binary file lib/x86_64-linux-gnu/ModemManager/libmm-plugin-dell.so matches所以答案是:
# systemctl stop ModemManager.service并可选择:
# systemctl disable ModemManager.servicehttps://askubuntu.com/questions/1208318
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