rk3288+ubuntu18.04接usb转串口时,上电启动时间延长,查了启动信息报以下错误,求解答。
[2022-04-20 14:36:16.129]# RECV ASCII>
[[0m[0;31m* [0m] A start job is running for dev-ttyUSB1.device (7s / 1min 30s)
[2022-04-20 14:36:16.704]# RECV ASCII>
[K[[0;1;31m*[0m[0;31m* [0m] A start job is running for dev-ttyUSB1.device (7s / 1min 30s)
[2022-04-20 14:36:17.304]# RECV ASCII>
[K[[0;31m*[0;1;31m*[0m[0;31m* [0m] A start job is running for dev-ttyUSB1.device (8s / 1min 30s)