From: Attila Lendvai <attila@lendvai.name>
To: Attila Lendvai <attila@lendvai.name>
Cc: guix-devel <guix-devel@gnu.org>
Subject: Re: [RFC] refactoring extra-special-file; an /etc/tmpfiles/ equivalent
Date: Fri, 10 Feb 2023 12:05:37 +0000 [thread overview]
Message-ID: <hpUqi4h3P9vblzMwwWrayWYOOtSzWDpaA7JZHX5mxxgNYcHT9KGwfswvGXcRPmpAmO2Yg7jYIzD_ckAEphSI3IQ8EVjsd_oLUa8Gly9Pfb0=@lendvai.name> (raw)
In-Reply-To: <bnkFpeHl43kNvaDPIHgLNSRTi22q-vRS5Bp-2-fX3BuOXtYQYqRLYFicv8Pk6qRvMP7EORKlNxcIFNUHYIyK0J5U-Qe8b1Iy8TJn1mlHvus=@lendvai.name>
> i want to write a string into a file at boot to disable wake-up by
> my keyboard (so that it doesn't immediately wake up my laptop after
> i suspend it). it requires doing this once per boot:
>
> echo XHC >/proc/acpi/wakeup
>
> the standard solution on systemd distros is to use a
> /etc/tmpfiles.d/disable-usb-wake.conf file, which systemd interprets
> (see e.g. https://forums.linuxmint.com/viewtopic.php?f=42&t=312953).
FTR, the "guixy way" currently is to add a service like this:
(simple-service 'disable-keyboard-wakeup activation-service-type
#~(begin
(use-modules (ice-9 regex))
(use-modules (ice-9 textual-ports))
(when (string-match "XHC\t S3\t\\*enabled"
(call-with-input-file "/proc/acpi/wakeup"
get-string-all))
(display "Turning off usb wakeup\n")
(with-output-to-file "/proc/acpi/wakeup"
(lambda _
(display "XHC"))))))
--
• attila lendvai
• PGP: 963F 5D5F 45C7 DFCD 0A39
--
Censorship is telling a man he can't have a steak just because a baby can't chew it.
next prev parent reply other threads:[~2023-02-10 12:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-21 15:29 [RFC] refactoring extra-special-file; an /etc/tmpfiles/ equivalent Attila Lendvai
2023-02-10 12:05 ` Attila Lendvai [this message]
2023-02-10 13:38 ` Attila Lendvai
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