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acer-wmi: Disable device autodetection on Fujitsu Siemens Amilo Li2732

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The AMW0 (V1) device detection method doesn't work properly on this laptop,
so disable it, and for other laptops that may have this problem, by
switching on a strange GUID.

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
This commit is contained in:
Carlos Corbacho 2008-06-21 09:09:48 +01:00 committed by Andi Kleen
parent 6f061ab5e5
commit 5753dd539a
1 changed files with 10 additions and 0 deletions
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10
drivers/misc/acer-wmi.c
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@ -88,6 +88,7 @@ struct acer_quirks {
* Acer ACPI method GUIDs
*/
#define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
#define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C"
#define WMID_GUID1 "6AF4F258-B401-42fd-BE91-3D4AC2D7C0D3"
#define WMID_GUID2 "95764E09-FB56-4e83-B31A-37761F60994A"
@ -548,6 +549,15 @@ static acpi_status AMW0_set_capabilities(void)
struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *obj;
/*
* On laptops with this strange GUID (non Acer), normal probing doesn't
* work.
*/
if (wmi_has_guid(AMW0_GUID2)) {
interface->capability |= ACER_CAP_WIRELESS;
return AE_OK;
}
args.eax = ACER_AMW0_WRITE;
args.ecx = args.edx = 0;