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SubjectRe: [PATCH 2/2] toshiba-acpi: Support TOS1900-type devices
On Thu, Apr 02, 2009 at 09:50:59AM +1700, Azael Avalos wrote:
> On Wed, Apr 1, 2009 at 4:02 PM, Matthew Garrett <mjg59@srcf.ucam.org> wrote:
> > Ok, can you try this and let me know what codes it generates (if it
> > generates any)? It should go on top of the previous patches.
>
> Nothing gets generated, even if I change the method to ".INFO" and hotkey
> events enabled with hci_write2(HCI_HOTKEY_EVENT, 1, 1, &hci_result) and
> TECF set to 1 (see my DSDT).
>
> I was playing with the code yesterday trying to get some events reported, but no
> luck so far.
>
> It appears that TOHK variable is _volatile_ and it just stores hotkey events
> temporarily and they don't get _stored_ like in the System Event FIFO.

Yes, you shouldn't be reading directly from TOHK at any point. It seems
to be a purely internal variable - I'm fairly sure that the INFO method
is the only one that should be called on event generation.

> On the patches I sent to the omnibook module I'm able to get events but they
> seem to get repeated 3 times, or perhaps I'm polling to often.

Hm. I don't have test hardware right now, I'm afraid. I'll look at some
DSDTs a bit more and see if anything springs to mind.

--
Matthew Garrett | mjg59@srcf.ucam.org


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