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Date:   Thu, 2 Nov 2017 16:39:36 +0100
From:   Paul Menzel <pmenzel+linux-serial@...gen.mpg.de>
To:     linux-serial@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org
Subject: How to enable output to serial console at run-time?

Dear Linux folks,


If I want to output the Linux kernel messages to the serial console, but 
the `console=ttyS…` line is missing on the Linux command line, is there 
a way to activate that during run-time by, for example, using the sysfs 
interface?


Kind regards,

Paul

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