基本だけど、メモ kazz@kazz:~$ dmesg|grep "ttyUSB" [ 769.909750] usb 5-1: pl2303 converter now attached to ttyUSB0 [ 772.302083] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0 [ 781.571964] usb 2-1.1: pl2303 converter now at…