Re: Xorg Libinput with Static Nodes

From	F Russell <fr@random.info>
Newsgroups	alt.os.linux, comp.os.linux.misc
Subject	Re: Xorg Libinput with Static Nodes
Followup-To	alt.os.linux
Date	2020-04-05 22:47 +0000
Organization	NewsGuy.com
Message-ID	<r6dn5a021vo@news2.newsguy.com> (permalink)
References	<r6dleb020pl@news4.newsguy.com> <r6dm4t$5pk$2@dont-email.me>

Cross-posted to 2 groups.

Followups directed to: alt.os.linux

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On Sun, 05 Apr 2020 22:29:49 +0000, Rich wrote:

> 
> If this is true, then udev (and likely eudev as well) allows for static 
> device nodes by an appropriate stanza in an appropriate udev (eudev) 
> configuration file.
> 

I did a test by switching the mouse driver in my xorg.conf
file:

Section "InputDevice"
Identifier "Mouse1"
Driver "libinput"
Option "Protocol" "IMPS/2"
Option "Device" "/dev/input/mouse0"

After re-starting Xorg the mouse was non-functional.
The Xorg.log file showed this:

[ 18281.838] (II) Using input driver 'libinput' for 'Mouse1'
[ 18281.838] (**) Option "CorePointer"
[ 18281.838] (**) Mouse1: always reports core events
[ 18281.838] (**) Option "Device" "/dev/input/mouse0"
[ 18283.869] (EE) libinput bug: udev device never initialized (/dev/input/mouse0)
[ 18283.869] (EE) client bug: Invalid path /dev/input/mouse0
[ 18283.869] (EE) libinput: Mouse1: Failed to create a device for /dev/input/mouse0
[ 18283.869] (EE) PreInit returned 2 for "Mouse1"
[ 18283.869] (II) UnloadModule: "libinput"

So the libinput driver is loaded but since I don't use
udev (eudev) because of static nodes, no device was created
for /dev/input/mouse0, even though the node /dev/input/mouse0
does exist.  (Indeed, I use /dev/input/mouse0 with the legacy
mouse driver.)

I need to somehow create a device for /dev/input/mouse0 before
I start Xorg and then the libinput driver should work.  But
how do I do that?

If I can solve this then I should be able to get both mouse
and keyboard working with libinput using static nodes.

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Thread

Xorg Libinput with Static Nodes F Russell <fr@random.info> - 2020-04-05 22:17 +0000
  Re: Xorg Libinput with Static Nodes Rich <rich@example.invalid> - 2020-04-05 22:29 +0000
    Re: Xorg Libinput with Static Nodes F Russell <fr@random.info> - 2020-04-05 22:47 +0000
      Re: Xorg Libinput with Static Nodes Rich <rich@example.invalid> - 2020-04-06 02:41 +0000
        Re: Xorg Libinput with Static Nodes F Russell <fr@random.info> - 2020-04-06 02:54 +0000
  Re: Xorg Libinput with Static Nodes Dan Espen <dan1espen@gmail.com> - 2020-04-05 21:45 -0400
    Re: Xorg Libinput with Static Nodes F Russell <fr@random.info> - 2020-04-06 02:45 +0000
  Re: Xorg Libinput with Static Nodes Ned Latham <nedlatham@woden.valhalla.oz> - 2020-04-05 21:14 -0500
    Re: Xorg Libinput with Static Nodes F Russell <fr@random.info> - 2020-04-06 02:50 +0000
      Re: Xorg Libinput with Static Nodes Ned Latham <nedlatham@woden.valhalla.oz> - 2020-04-05 22:57 -0500
        Re: Xorg Libinput with Static Nodes F Russell <fr@random.info> - 2020-04-06 11:00 +0000
          Re: Xorg Libinput with Static Nodes "J.O. Aho" <user@example.net> - 2020-04-06 13:24 +0200
            Re: Xorg Libinput with Static Nodes F Russell <fr@random.info> - 2020-04-06 11:41 +0000
              Re: Xorg Libinput with Static Nodes "J.O. Aho" <user@example.net> - 2020-04-06 15:53 +0200
                Re: Xorg Libinput with Static Nodes F Russell <fr@random.info> - 2020-04-06 14:14 +0000
                Re: Xorg Libinput with Static Nodes Rich <rich@example.invalid> - 2020-04-06 14:19 +0000
                Re: Xorg Libinput with Static Nodes Fenris <fenris@invalid.invalid> - 2020-04-06 14:29 +0000
                Re: Xorg Libinput with Static Nodes "J.O. Aho" <user@example.net> - 2020-04-06 17:04 +0200
            Re: Xorg Libinput with Static Nodes F Russell <fr@random.info> - 2020-04-06 12:19 +0000
              Re: Xorg Libinput with Static Nodes "J.O. Aho" <user@example.net> - 2020-04-06 16:09 +0200
                Re: Xorg Libinput with Static Nodes F Russell <fr@random.info> - 2020-04-06 14:46 +0000
          Re: Xorg Libinput with Static Nodes Ned Latham <nedlatham@woden.valhalla.oz> - 2020-04-06 07:24 -0500
            Re: Xorg Libinput with Static Nodes F Russell <fr@random.info> - 2020-04-06 13:47 +0000
              Re: Xorg Libinput with Static Nodes Ned Latham <nedlatham@woden.valhalla.oz> - 2020-04-06 08:58 -0500
          Re: Xorg Libinput with Static Nodes DecadentLinuxUserNumeroUno@decadence.org - 2020-04-06 14:58 +0000
            Re: Xorg Libinput with Static Nodes F Russell <fr@random.info> - 2020-04-06 18:17 +0000
              Re: Xorg Libinput with Static Nodes "Carlos E.R." <robin_listas@es.invalid> - 2020-04-06 22:53 +0200
                Re: Xorg Libinput with Static Nodes DecadentLinuxUserNumeroUno@decadence.org - 2020-04-07 20:50 +0000
  Re: Xorg Libinput with Static Nodes "J.O. Aho" <user@example.net> - 2020-04-06 07:02 +0200
    Re: Xorg Libinput with Static Nodes "David W. Hodgins" <dwhodgins@nomail.afraid.org> - 2020-04-06 01:32 -0400
      Re: Xorg Libinput with Static Nodes "J.O. Aho" <user@example.net> - 2020-04-06 10:44 +0200
        Re: Xorg Libinput with Static Nodes "Carlos E.R." <robin_listas@es.invalid> - 2020-04-06 11:08 +0200
          Re: Xorg Libinput with Static Nodes Paul <nospam@needed.invalid> - 2020-04-06 05:53 -0400
            Re: Xorg Libinput with Static Nodes "Carlos E.R." <robin_listas@es.invalid> - 2020-04-07 01:37 +0200
          Re: Xorg Libinput with Static Nodes "J.O. Aho" <user@example.net> - 2020-04-06 13:05 +0200
    Re: Xorg Libinput with Static Nodes "Carlos E.R." <robin_listas@es.invalid> - 2020-04-06 11:12 +0200
    Re: Xorg Libinput with Static Nodes F Russell <fr@random.info> - 2020-04-06 11:24 +0000
      Re: Xorg Libinput with Static Nodes Jasen Betts <jasen@xnet.co.nz> - 2020-04-06 12:00 +0000
      Re: Xorg Libinput with Static Nodes Paul <nospam@needed.invalid> - 2020-04-06 08:05 -0400
        Re: Xorg Libinput with Static Nodes F Russell <fr@random.info> - 2020-04-06 13:45 +0000
          Re: Xorg Libinput with Static Nodes F Russell <fr@random.info> - 2020-04-06 14:10 +0000
            Re: Xorg Libinput with Static Nodes F Russell <fr@random.info> - 2020-04-06 14:29 +0000
              Re: Xorg Libinput with Static Nodes "Carlos E.R." <robin_listas@es.invalid> - 2020-04-06 19:05 +0200
                Re: Xorg Libinput with Static Nodes F Russell <fr@random.info> - 2020-04-06 17:25 +0000
                Re: Xorg Libinput with Static Nodes [Solved] F Russell <fr@random.info> - 2020-04-07 19:07 +0000
                Re: Xorg Libinput with Static Nodes [Solved] Melzzzzz <Melzzzzz@zzzzz.com> - 2020-04-07 21:43 +0000

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