Public bug reported:

The "assist" and "vaio" buttons on Sony Vaio F series laptops are not
recognized (although ACPI events are still sent).

In checking dmesg, I receive the following errors:

For the assist button:
[84044.545156] sony-laptop: Unknown event: 0x100 0xa6
[84044.946497] sony-laptop: Unknown event: 0x100 0x26

For the Vaio button: 
[84119.820688] sony-laptop: Unknown event: 0x100 0xa5
[84119.940642] sony-laptop: Unknown event: 0x100 0x25

These are consistent with a keypress and a key release.

I have included a patch to sony-laptop.c (contained in
drivers/platform/x86 in the Linux source). This patch was written for
2.6.35, but works on 2.6.37 (downloaded tonight from
http://packages.ubuntu.com/natty/linux-source-2.6.37).

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: sony-laptop

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https://bugs.launchpad.net/bugs/695919

Title:
  Sony F series "assist" and "vaio" buttons not recognized by sony-laptop

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