Re: Help with ACPI events

[Alexey Starikovskiy <alexey.y.starikovskiy@linux.intel.com>]

Next, you should look into your DSDT and find what exactly _Q10 does (it 
might set/reset some variable with descriptive name). Then, in your code 
you can read the state of this variable with 
acpi_evaluate_integer/acpi_evaluate_object. Please look at drivers in 
drivers/acpi for examples.

Regards,
    Alex.
Larry Finger wrote:
> I'm writing for some help with ACPI events, which may be getting in the way of the setting of LEDs
> for the bcm43xx module. I have an HP notebook with a "Broadcom Corporation Dell Wireless 1390 WLAN
> Mini-PCI Card". This machine has a wireless on/off switch on the front. By experimenting while using
> 2.6.9.1, I found the necessary code needed to toggle the LED associated with the switch. The same
> code does not work with 2.6.20-rc2 and the LED is always off. The state of the switch is correctly
> read out by my code, but no deal with changing the LED state.
>
> The reason I'm writing you is that whenever the switch is changed on 2.6.20, a "ACPI: EC: evaluating
> _Q10" message is logged just before my code detects the switch change. I looked at the acpi driver a
> little, but quickly got lost.
>
> Is there a change in the acpi subsystem in 2.6.20 that might be interfering? Where should I look next?
>
> Thanks,
>
> Larry
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