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authorCarlos Corbacho <carlos@strangeworlds.co.uk>2008-06-21 09:09:48 +0100
committerAndi Kleen <andi@basil.nowhere.org>2008-07-16 23:27:02 +0200
commit5753dd539a86d8fc40a25e1a2cd1005a6525f083 (patch)
tree601a7fd86ba98424019f979b021cfd7329384fdd /drivers
parent6f061ab5e55d7fe6ce0c36e8954f56f0d95348fb (diff)
acer-wmi: Disable device autodetection on Fujitsu Siemens Amilo Li2732
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/misc/acer-wmi.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/misc/acer-wmi.c b/drivers/misc/acer-wmi.c
index 5b7c5fcd5af..dd0b8d8b5bd 100644
--- a/drivers/misc/acer-wmi.c
+++ b/drivers/misc/acer-wmi.c
@@ -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;