dmesg|grep USB0
[ 14.438872] usb 6-1: pl2303 converter now attached to ttyUSB0
[ 138.289332] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[ 6229.382259] usb 6-1: pl2303 converter now attached to ttyUSB0
[ 6295.154351] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[ 6434.189434] usb 6-1: pl2303 converter now attached to ttyUSB0
[ 6439.984493] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[ 6572.561404] usb 6-1: pl2303 converter now attached to ttyUSB0
[ 6580.354391] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[ 6801.852250] usb 6-1: pl2303 converter now attached to ttyUSB0
[ 6931.769890] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[ 7086.191894] usb 6-1: pl2303 converter now attached to ttyUSB0
[ 7302.032898] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[ 7763.929614] usb 6-1: pl2303 converter now attached to ttyUSB0
[ 7784.640502] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[ 7827.555805] usb 7-1: pl2303 converter now attached to ttyUSB0
[ 7867.472524] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[ 8043.975818] usb 6-1: pl2303 converter now attached to ttyUSB0
[ 8068.848826] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[ 8175.357589] usb 6-1: pl2303 converter now attached to ttyUSB0
[ 8186.648505] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[ 9172.591543] usb 6-1: pl2303 converter now attached to ttyUSB0
[ 9194.521424] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
