linux-kernel - Input+S3: extra keycodes forgotten after suspend

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Date:	Fri, 16 May 2008 22:25:43 +0200
From:	Bruno Prémont <bonbons@...ux-vserver.org>
To:	Linux Input <linux-input@...r.kernel.org>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	"R. J. Wysocki" <Rafal.Wysocki@....edu.pl>
Subject: Input+S3: extra keycodes forgotten after suspend

On my Acer TravelMate 660 I lose keycodes for the extra keys (dritek
extensions) after resume.

The system runs setkeycodes during boot sequence to initialize key codes
for the extra keys as below:

/usr/bin/setkeycodes KEYCODES="e025 138 e026 141 e027 171 e074 148 e073 149 e055 229 e056 230 e057 227 e058 228"
# Fn + F1   ~ e025  => 138 [KEY_HELP] (Help)
# Fn + F2   ~ e026  => 141 [KEY_SETUP] (Notebook Manager)
# Fn + F3   ~ e027  => 171 [KEY_CONFIG] (Power Options)
# Mail      ~ e06c  => 155 [KEY_MAIL] (EMail)
# WWW       ~ e032  => 150 [KEY_WWW] (Browser)
# P1        ~ e074  => 148 [KEY_PROG1] (P1)
# P2        ~ e073  => 149 [KEY_PROG2] (P2)
# Bluetooth ~ e058  => 228 [KEY_BLUETOOTH_DISABLE] (Disable Bluetooth)
# Bluetooth ~ e057  => 227 [KEY_BLUETOOTH_ENABLE] (Enable Bluetooth)
# Wireless  ~ e056  => 230 [KEY_WLAN_DISABLE] (Disable WLAN)
# Wireless  ~ e055  => 229 [KEY_WLAN_ENABLE] (Enable WLAN)
# Vol UP    ~ e030  => 115 [KEY_VOLUMEUP] (Increase Volume)
# Vol DOWN  ~ e02e  => 114 [KEY_VOLUMEDOWN] (Decrease Volume)
# Vol Mute  ~ e020  => 113 [KEY_MUTE] (Mute volume)

After resume I end up with the following messages when pressing the keys:
[  779.695675] atkbd.c: Unknown key pressed (translated set 2, code 0xd6 on isa0060/serio0).
[  779.695675] atkbd.c: Use 'setkeycodes e056 <keycode>' to make it known.
[  779.705218] atkbd.c: Unknown key released (translated set 2, code 0xd6 on isa0060/serio0).
[  779.705218] atkbd.c: Use 'setkeycodes e056 <keycode>' to make it known.
[  781.603912] atkbd.c: Unknown key pressed (translated set 2, code 0xd5 on isa0060/serio0).
[  781.603912] atkbd.c: Use 'setkeycodes e055 <keycode>' to make it known.
[  781.613564] atkbd.c: Unknown key released (translated set 2, code 0xd5 on isa0060/serio0).
[  781.613564] atkbd.c: Use 'setkeycodes e055 <keycode>' to make it known.
[  782.772662] atkbd.c: Unknown key pressed (translated set 2, code 0xd7 on isa0060/serio0).
[  782.772662] atkbd.c: Use 'setkeycodes e057 <keycode>' to make it known.
[  782.782390] atkbd.c: Unknown key released (translated set 2, code 0xd7 on isa0060/serio0).
[  782.782390] atkbd.c: Use 'setkeycodes e057 <keycode>' to make it known.
[  783.461807] atkbd.c: Unknown key pressed (translated set 2, code 0xd8 on isa0060/serio0).
[  783.461807] atkbd.c: Use 'setkeycodes e058 <keycode>' to make it known.
[  783.471544] atkbd.c: Unknown key released (translated set 2, code 0xd8 on isa0060/serio0).
[  783.471544] atkbd.c: Use 'setkeycodes e058 <keycode>' to make it known.


Is this kind of issue known, what are the options to get kernel to remember the
keycode mappings after s2ram?

System details:
  uname: Linux neptune 2.6.25.4 #8 Fri May 16 20:15:52 CEST 2008 i686 Intel(R)
            Pentium(R) M processor 1500MHz GenuineIntel GNU/Linux
  distro: Gentoo
  suspending with: echo mem > /sys/power/state


Bruno

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