Given the work required to get acpi_fakekey to work reliably in jaunty, I think it would actually be easier to get an ACPI kernel driver for your platform. There are several existing examples of this available: thinkpad_acpi and sony-laptop appear to work for people, and there is already an asus-laptop module in the kernel that probably just needs to be extended to handle this case.
Mackenzie,
Given the work required to get acpi_fakekey to work reliably in jaunty, I think it would actually be easier to get an ACPI kernel driver for your platform. There are several existing examples of this available: thinkpad_acpi and sony-laptop appear to work for people, and there is already an asus-laptop module in the kernel that probably just needs to be extended to handle this case.