linux-kernel - Re: [PATCH] Documentation: sysrq: Remove contradicting sentence on extra /proc/sysrq-trigger characters

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Message-ID: <aO9ryPohDdkoFykR@archie.me>
Date: Wed, 15 Oct 2025 16:39:20 +0700
From: Bagas Sanjaya <bagasdotme@...il.com>
To: Jiri Slaby <jirislaby@...nel.org>, Randy Dunlap <rdunlap@...radead.org>,
	Jonathan Corbet <corbet@....net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Documentation <linux-doc@...r.kernel.org>,
	Linux Serial <linux-serial@...r.kernel.org>
Cc: Cengiz Can <cengiz@...nel.wtf>,
	Tomas Mudrunka <tomas.mudrunka@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Anselm Schüler <mail@...elmschueler.com>
Subject: Re: [PATCH] Documentation: sysrq: Remove contradicting sentence on
 extra /proc/sysrq-trigger characters

On Wed, Oct 15, 2025 at 08:18:44AM +0200, Jiri Slaby wrote:
> On 15. 10. 25, 2:11, Bagas Sanjaya wrote:
> > I guess the whole "On all" description can be rewritten like:
> > 
> > Write a single character to /proc/sysrq-trigger, e.g.::
> > 
> > <snipped>...
> > 
> > If a string (multiple characters) is written instead, only the first character
> > is processed unless the string is prepended by an underscore, like::
> > 
> > <snipped>...
> 
> Some kind of, yes. So Either:
> * you write no underscore and a character -- the rest is ignored and you
> should not write more than one.
> * you prepend underscore and write more of them -- all are processed.
> 

OK, thanks!

-- 
An old man doll... just what I always wanted! - Clara

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