linux-kernel - Re: [RFC] tty/sysrq: Add alternative SysRq key

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Message-ID: <17ccc35d-441c-70c1-a80a-28a4ff824535@collabora.com>
Date:   Thu, 4 Nov 2021 13:21:44 +0100
From:   Andrzej Pietrasiewicz <andrzej.p@...labora.com>
To:     Pavel Machek <pavel@....cz>
Cc:     linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Jiri Slaby <jirislaby@...nel.org>, kernel@...labora.com
Subject: Re: [RFC] tty/sysrq: Add alternative SysRq key

Hi Pavel,

W dniu 04.11.2021 o 13:01, Pavel Machek pisze:
> Hi!
> 
>> There exist machines which don't have SysRq key at all, e.g. chromebooks.
>>
>> This patch allows configuring an alternative key to act as SysRq. Devices
>> which declare KEY_SYSRQ in their 'keybit' bitmap continue using KEY_SYSRQ,
>> but other devices use the alternative SysRq key instead, by default F10.
>> Which key is actually used can be modified with sysrq's module
>> parameter.
> 
> Is F10 sensible default? Would it make sense to use something like
> alt-shift-esc so that this can be enabled by default?

Why "alt-shift-esc" could be enabled by default? Do you mean to enable it for
all systems regardless of whether they declare or don't declare KEY_SYSRQ
in their 'keybit' bitmap?

Andrzej