From: Greg KH <gregkh@linuxfoundation.org>
To: Paul Menzel <pmenzel+linux-serial@molgen.mpg.de>
Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: How to enable output to serial console at run-time?
Date: Thu, 2 Nov 2017 17:53:22 +0100 [thread overview]
Message-ID: <20171102165322.GA19434@kroah.com> (raw)
In-Reply-To: <3c348fe1-1474-6c19-691d-8130d4bd0d32@molgen.mpg.de>
On Thu, Nov 02, 2017 at 04:39:36PM +0100, Paul Menzel wrote:
> 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?
Why not change the command line to enable it properly?
thanks,
greg k-h
next prev parent reply other threads:[~2017-11-02 16:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-02 15:39 How to enable output to serial console at run-time? Paul Menzel
2017-11-02 16:53 ` Greg KH [this message]
2017-11-02 19:01 ` Paul Menzel
2017-11-02 22:29 ` Alan Cox
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