fujitsu-laptop: use .notify method instead of installing hotkey handler directly
This patch adds a .notify() method. The presence of .notify() causes Linux/ACPI to manage event handlers and notify handlers on our behalf, so we don't have to install and remove them ourselves. Tested by Tony on Fujitsu-Siemens Lifebook S6420 [FJNB1E6] with BIOS 1.18 (01/09/2009). Tested by Jonathan on Fujitsu S7020. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-By: Tony Vroon <tony@linx.net> Tested-By: Tony Vroon <tony@linx.net> Acked-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au> Tested-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au> Signed-off-by: Len Brown <len.brown@intel.com>
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