For certain drivers (such as the Thinkpad ACPI driver[1]), it would be helpful to be able to get notifications when a method is executed. I'd propose adding a call like acpi_method_notify, extending the method field to contain an extra flag for notifications and a callback, having acpi_aml_execute check this before executing the methods and perhaps checking the return code to decide whether to continue executing the method or not (would potentially allow overriding methods, though I'm not convinced it's a good idea). Does this sound basically sane? If so, I'll do a patch.
[1] Various Thinkpads make predictable method calls when hotkeys are pressed, but make no notifications. Hooking into those methods would allow those keys to be caught without the requirement to repeatedly poll the hardware to see if there's been an update. -- Matthew Garrett | [EMAIL PROTECTED] - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
