How to redirect the qemu-system-arm A9 project's uart1 to real device

[CN-CaoJun]

Hello ALL
I noticed that in project qemu-a9, that the uart1 source is free, so how can we let the app could receive&senc uart data via UART1, then , it's better to redirect the UART1 to /dev/ttyUSB*.

[CN-CaoJun]

emmmm... I have little progress on it, i will share how to do it in these days