On 08/06/2016 08:02, [email protected] wrote:
>> -----Original Message-----
>> From: Pali Rohár [mailto:[email protected]]
>> Sent: Tuesday, June 7, 2016 6:00 PM
>> To: Gabriele Mazzotta <[email protected]>; Limonciello, Mario
>> <[email protected]>
>> Cc: Matthew Garrett <[email protected]>; Darren Hart
>> <[email protected]>; Michał Kępień <[email protected]>; Andy Lutomirski
>> <[email protected]>; Alex Hung <[email protected]>; platform-driver-
>> [email protected]; [email protected]
>> Subject: Re: [PATCH 3/4] dell-wmi: Add information about other WMI event
>> codes
>>
>> On Friday 27 May 2016 00:04:23 Gabriele Mazzotta wrote:
>>> On 22/05/2016 13:36, Pali Rohár wrote:
>>>> ACPI DSDT tables have defined other WMI codes, but does not contain
>>>> any description when those codes are emitted. Some other codes can
>>>> be found in logs on internet. In this patch are all which I saw, but
>>>> lot of them are not tested properly (e.g. for duplicate events with
>>>> AT keyboard). Now we have all WMI event codes at one place and in
>>>> future after proper testing those codes can be correctly enabled or
>> disabled...
>>>>
>>>> Signed-off-by: Pali Rohár <[email protected]>
>>>> ---
>>>>  drivers/platform/x86/dell-wmi.c |   32
>> ++++++++++++++++++++++++++++++++
>>>>  1 file changed, 32 insertions(+)
>>>>
>>>> diff --git a/drivers/platform/x86/dell-wmi.c
>>>> b/drivers/platform/x86/dell-wmi.c index 363d927..7aac1dc 100644
>>>> --- a/drivers/platform/x86/dell-wmi.c
>>>> +++ b/drivers/platform/x86/dell-wmi.c
>>>> @@ -110,6 +110,9 @@ static const struct key_entry
>> dell_wmi_legacy_keymap[] __initconst = {
>>>>    /* BIOS error detected */
>>>>    { KE_IGNORE, 0xe00d, { KEY_RESERVED } },
>>>>
>>>> +  /* Unknown, defined in ACPI DSDT */
>>>> +  /* { KE_IGNORE, 0xe00e, { KEY_RESERVED } }, */
>>>> +
>>>
>>> I'm interested in knowing what's the meaning of this 0xe00e. This
>>> event is sent multiple times when I suspend/resume my laptop and it's
>>> definitely not a keypress.
>>
>> From DSDT dumps which I have seen, I guess it could be something with battery
>> charging... but that is only my guess.
>>
>> Mario, do you have any idea, what these unknown events are?
> 
> Off-hand I'm not sure, it would require some more digging.
> 
> Can you please remind me what model numbers and BIOS combinations you have 
> found e00e in DSDT and what context the events are actually happening?   
> Anything released in the past two years?
> 

XPS13 9333, BIOS A07.

I think I saw the event only after resuming from suspend and
it's sent four times in a row.

As Pali says, it seems to be related to the battery. There are
three _Qxx ACPI methods in my DSDT sending this event: one stops
battery charging, one detaches the battery and the last one stores
a value on the GNVS.

Reply via email to