From 2b0c59baa23c04475579def2ab3c7945eaf67b4f Mon Sep 17 00:00:00 2001
From: Martin Pitt <martin@piware.de>
Date: Mon, 22 Jan 2018 21:17:08 +0100
Subject: [PATCH] hwdb: map zoomin/out keys to up/down

Some keyboards come with a zoom see-saw or rocker which until now got
mapped to the Linux "zoomin/out" keys in hwdb. However, these keycodes
are not recognized by any major desktop. They now produce Up/Down key
events so that they can be used for scrolling.

The internet is full of instructions how to "unbreak" these keys, e. g.

  https://askubuntu.com/questions/471802/make-the-zoom-slider-of-microsoft-natural-ergonomic-keyboard-4000-and-7000-scrol
  https://unix.stackexchange.com/questions/322075/how-to-get-ms-natural-ergonomic-4000-slider-work-on-linux-mint

So let's make it official. But keep their physical meaning in comments
in case desktops start to do something useful with them at some point.

Thanks to Finn Christiansen for the original patch!

Replaces #6953
---
 NEWS                  |  9 +++++++++
 hwdb/60-keyboard.hwdb | 28 ++++++++++++++--------------
 2 files changed, 23 insertions(+), 14 deletions(-)

diff --git a/NEWS b/NEWS
index 1d7196af627..46b8e12fb9c 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,14 @@
 systemd System and Service Manager
 
+CHANGES WITH 237 in spe:
+
+        * Some keyboards come with a zoom see-saw or rocker which until now got
+          mapped to the Linux "zoomin/out" keys in hwdb. However, these
+          keycodes are not recognized by any major desktop. They now produce
+          Up/Down key events so that they can be used for scrolling.
+
+        — Berlin, 2018-XX-XX
+
 CHANGES WITH 236:
 
         * The modprobe.d/ drop-in for the bonding.ko kernel module introduced
diff --git a/hwdb/60-keyboard.hwdb b/hwdb/60-keyboard.hwdb
index 16223772ecd..da486cfde23 100644
--- a/hwdb/60-keyboard.hwdb
+++ b/hwdb/60-keyboard.hwdb
@@ -768,14 +768,14 @@ evdev:input:b0003v046DpC308*
 
 # Cordless Desktop S510
 evdev:input:b0003v046DpC50C*
- KEYBOARD_KEY_d4=zoomin
- KEYBOARD_KEY_cc=zoomout
+ KEYBOARD_KEY_d4=up                                     # zoomin
+ KEYBOARD_KEY_cc=down                                   # zoomout
 
 # Wave cordless
 evdev:input:b0003v046DpC317*
  KEYBOARD_KEY_9001c=scale                               # expo
- KEYBOARD_KEY_9001f=zoomout
- KEYBOARD_KEY_90020=zoomin
+ KEYBOARD_KEY_9001f=down                                # zoomout
+ KEYBOARD_KEY_90020=up                                  # zoomin
  KEYBOARD_KEY_9003d=prog1                               # gadget
  KEYBOARD_KEY_90005=camera
  KEYBOARD_KEY_90018=media
@@ -792,8 +792,8 @@ evdev:input:b0003v046DpC317*
 
 # Wave cordless
 evdev:input:b0003v046DpC517*
- KEYBOARD_KEY_c101f=zoomout
- KEYBOARD_KEY_c1020=zoomin
+ KEYBOARD_KEY_c101f=down                                # zoomout
+ KEYBOARD_KEY_c1020=up                                  # zoomin
  KEYBOARD_KEY_c1005=camera
  KEYBOARD_KEY_c0183=media
  KEYBOARD_KEY_c1041=wordprocessor
@@ -818,8 +818,8 @@ evdev:input:b0003v046DpC52[9B]*
  KEYBOARD_KEY_0c018a=mail
  KEYBOARD_KEY_0c0221=search
  KEYBOARD_KEY_0c00b8=ejectcd
- KEYBOARD_KEY_0c022d=zoomin
- KEYBOARD_KEY_0c022e=zoomout
+ KEYBOARD_KEY_0c022d=up                                 # zoomin
+ KEYBOARD_KEY_0c022e=down                               # zoomout
 
 # Logitech Presenter R400
 evdev:input:b0003v046DpC52D*
@@ -894,8 +894,8 @@ evdev:atkbd:dmi:bvn*:bvr*:bd*:svnMEDIONNB:pnA555*:pvr*
 
 # Microsoft Natural Ergonomic Keyboard 4000
 evdev:input:b0003v045Ep00DB*
- KEYBOARD_KEY_c022d=zoomin
- KEYBOARD_KEY_c022e=zoomout
+ KEYBOARD_KEY_c022d=up                                  # zoomin
+ KEYBOARD_KEY_c022e=down                                # zoomout
 
 ###########################################################
 # Micro Star
@@ -1187,8 +1187,8 @@ evdev:name:Sony Vaio Keys:dmi:bvn*:bvr*:bd*:svnSony*:pnVGN-Z21*:pvr*
  KEYBOARD_KEY_00=brightnessdown                         # Fn+F5
  KEYBOARD_KEY_10=brightnessup                           # Fn+F6
  KEYBOARD_KEY_11=switchvideomode                        # Fn+F7
- KEYBOARD_KEY_12=zoomout
- KEYBOARD_KEY_14=zoomin
+ KEYBOARD_KEY_12=down                                   # zoomout
+ KEYBOARD_KEY_14=up                                     # zoomin
  KEYBOARD_KEY_15=suspend                                # Fn+F12
  KEYBOARD_KEY_17=prog1
  KEYBOARD_KEY_20=media
@@ -1198,8 +1198,8 @@ evdev:name:Sony Vaio Keys:dmi:bvn*:bvr*:bd*:svnSony*:pnVGN-FW250*:pvr*
 
 evdev:name:Sony Vaio Keys:dmi:bvn*:bvr*:bd*:svnSony*:pnVPC*:pvr*
  KEYBOARD_KEY_05=f21                                    # Fn+F1 -> KEY_F21 (The actual touchpad toggle)
- KEYBOARD_KEY_0d=zoomout                                # Fn+F9
- KEYBOARD_KEY_0e=zoomin                                 # Fn+F10
+ KEYBOARD_KEY_0d=down                                   # Fn+F9 zoomout
+ KEYBOARD_KEY_0e=up                                     # Fn+F10 zoomin
 
 ###########################################################
 # Toshiba