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Re: [Qemu-discuss] ttyS1 on qemu-system-x86_64 is not working
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From: |
Li RongQing |
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Subject: |
Re: [Qemu-discuss] ttyS1 on qemu-system-x86_64 is not working |
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Date: |
Mon, 15 Feb 2016 13:00:18 +0800 |
On Mon, Feb 15, 2016 at 11:19 AM, Li RongQing <address@hidden> wrote:
>
> 3. debug in kernel shows that /dev/ttyS1 type is unknown, since kernel
> can not find its type by reading the register UART_IER
address@hidden:~# cat /proc/tty/driver/serial
serinfo:1.0 driver revision:
0: uart:16550A port:000003F8 irq:4 tx:19770 rx:130 RTS|CTS|DTR|DSR|CD
1: uart:unknown port:000002F8 irq:3
2: uart:unknown port:000003E8 irq:4
3: uart:unknown port:000002E8 irq:3
address@hidden:~#
-Roy