dell-wmi: enable receiving WMI events on Dell Vostro V131

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On some laptop models (e.g. Dell Vostro V131), WMI events are not
generated until a specific SMBIOS request is issued to register an event
listener [1].  As there seems to be no ACPI method or SMBIOS request to
determine without possible side effects whether a given machine needs to
issue this SMBIOS request in order to receive WMI events, DMI matching
is used to whitelist the models which need it.

[1] https://lists.us.dell.com/pipermail/libsmbios-devel/2015-July/000612.html

Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>

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Michał Kępień 2016-03-04 14:09:08 +01:00 • committed by Darren Hart

parent 0db2180fce

commit e09c4d5b15

2 changed files with 67 additions and 0 deletions

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1

drivers/platform/x86/Kconfig

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66

drivers/platform/x86/dell-wmi.c

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