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Re: [Qemu-devel] [PATCH] hw/input/pckbd: The i8042 device should not be
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From: |
Markus Armbruster |
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Subject: |
Re: [Qemu-devel] [PATCH] hw/input/pckbd: The i8042 device should not be user_creatable |
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Date: |
Mon, 08 Apr 2019 08:01:13 +0200 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) |
Paolo Bonzini <address@hidden> writes:
> On 04/04/19 22:49, Philippe Mathieu-Daudé wrote:
>> While I wonder if someone still use the r4k machine, I have more doubts
>> about users running with more the 2 -serial options...
>
> I sort of remember ISA extension cards that had jumpers or dip switches
> to choose between COM1/COM2/COM3/COM4...
They still exist, with I/O ports and IRQ lines selectable via jumpers &
DIP switches. Traditionally:
COM1: I/O port 0x3F8, IRQ 4
COM2: I/O port 0x2F8, IRQ 3
COM3: I/O port 0x3E8, IRQ 4
COM4: I/O port 0x2E8, IRQ 3