[Bug 48325] Panasonic ACPI driver (pcc) does not generate key events

[Kliment Yanev]

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On a Panasonic CF-Y4, after the update to Dapper, the multimedia keys
(volume up, down, mute) do not work. After a bit of investigation, I
noticed that xev will not show any events for them either (which it used
to in Breezy). Looking at the pcc driver site,

http://www.da-cha.org/letsnote/

, I noticed that there is an updated driver for .15 kernels. The version
in Dapper seems to be the older one:

$ cat /proc/acpi/pcc/version
PCC Extra Driver version 0.8.2+hy $Id: pcc_acpi.c,v 1.10 2006/01/25 13:23:18 elca Exp $
14 functions

The kernel messages indicate only that the driver loads and registers a device:
Jun  3 22:51:27 localhost kernel: [4294690.333000] pcc_acpi: loading...
Jun  3 22:51:27 localhost kernel: [4294690.333000] input: PCC Extra Driver as /class/input/input1

The files created by the driver exist in /proc/acpi/pcc and the
brightness control works fine, so the driver is functional. It just
seems the key events disappear somewhere along the line. The hotkey.pl
script mentioned on the pcc driver site is missing.

** Affects: linux-source-2.6.15 (Ubuntu)
     Importance: Medium
         Status: Incomplete

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Panasonic ACPI driver (pcc) does not generate key events
https://bugs.launchpad.net/bugs/48325