From f85a43b907ec90fb370e7d1061248cf9d25aa2c3 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Pali=20Roh=C3=A1r?= Date: Sat, 12 Aug 2017 09:44:15 +0200 Subject: [PATCH] platform/x86: mxm-wmi: Evaluate wmi method with instance number 0x0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit According to MXM 2.1 specification, there is the only one instance of the WMI GUID F6CB5C3C-9CAE-4EBD-B577-931EA32A2CC0 and so it is instance 0x0. MXM 2.1 specification: https://lekensteyn.nl/files/docs/mxm-2.1-software-spec.pdf _WDG dump: // Methods GUID {F6CB5C3C-9CAE-4EBD-B577-931EA32A2CC0} 0x3C, 0x5C, 0xCB, 0xF6, 0xAE, 0x9C, 0xBD, 0x4E, 0xB5, 0x77, 0x93, 0x1E, 0xA3, 0x2A, 0x2C, 0xC0, 0x4D, 0x58, // Object ID "MX" = method "WMMX" 1, // Instance Count 0x02, // Flags (WMIACPI_REGFLAG_METHOD) Signed-off-by: Pali Rohár Signed-off-by: Andy Shevchenko --- drivers/platform/x86/mxm-wmi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/platform/x86/mxm-wmi.c b/drivers/platform/x86/mxm-wmi.c index f4bad83053a9..35d8b9a939f9 100644 --- a/drivers/platform/x86/mxm-wmi.c +++ b/drivers/platform/x86/mxm-wmi.c @@ -53,7 +53,7 @@ int mxm_wmi_call_mxds(int adapter) printk("calling mux switch %d\n", adapter); - status = wmi_evaluate_method(MXM_WMMX_GUID, 0x1, adapter, &input, + status = wmi_evaluate_method(MXM_WMMX_GUID, 0x0, adapter, &input, &output); if (ACPI_FAILURE(status)) @@ -78,7 +78,7 @@ int mxm_wmi_call_mxmx(int adapter) printk("calling mux switch %d\n", adapter); - status = wmi_evaluate_method(MXM_WMMX_GUID, 0x1, adapter, &input, + status = wmi_evaluate_method(MXM_WMMX_GUID, 0x0, adapter, &input, &output); if (ACPI_FAILURE(status)) -- 2.11.0