sio => uart: one port is gone

Marcel Moolenaar xcllnt at
Mon Sep 15 16:55:49 UTC 2008

On Sep 15, 2008, at 9:47 AM, Andriy Gapon wrote:

> on 15/09/2008 19:41 Marcel Moolenaar said the following:
>> So, if you compile acpi(4) as a module, you must compile all
>> it's depending drivers as modules as well. Or you compile acpi
>> into the kernel...
> I understand the logic, but OTOH uart can work without acpi too, so  
> it's not a strict dependency.

Well, yes. That's what's causing your "problem". You compile a
kernel without acpi but with uart. As such, uart will be built
without acpi support. uart does indeed work without acpi.

The problem is that people then load the acpi module at runtime
and expect uart to work with acpi. That's not going to fly. If
one builds uart as a module, all possible support is included
and it works as expected.

> Also, this (acpi dependency) doesn't seem to be documented.

It's standard behaviour.

Marcel Moolenaar
xcllnt at

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