diff options
| -rw-r--r-- | drivers/platform/x86/eeepc-wmi.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/platform/x86/eeepc-wmi.c b/drivers/platform/x86/eeepc-wmi.c index 52274e2..4d38f98 100644 --- a/drivers/platform/x86/eeepc-wmi.c +++ b/drivers/platform/x86/eeepc-wmi.c @@ -49,6 +49,8 @@ MODULE_AUTHOR("Yong Wang <yong.y.wang@intel.com>"); MODULE_DESCRIPTION("Eee PC WMI Hotkey Driver"); MODULE_LICENSE("GPL"); +#define EEEPC_ACPI_HID "ASUS010" /* old _HID used in eeepc-laptop */ + #define EEEPC_WMI_EVENT_GUID "ABBC0F72-8EA1-11D1-00A0-C90629100000" #define EEEPC_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66" @@ -861,6 +863,27 @@ static struct platform_driver platform_driver = { }, }; +static acpi_status __init eeepc_wmi_parse_device(acpi_handle handle, u32 level, + void *context, void **retval) +{ + pr_warning("Found legacy ATKD device (%s)", EEEPC_ACPI_HID); + *(bool *)context = true; + return AE_CTRL_TERMINATE; +} + +static int __init eeepc_wmi_check_atkd(void) +{ + acpi_status status; + bool found = false; + + status = acpi_get_devices(EEEPC_ACPI_HID, eeepc_wmi_parse_device, + &found, NULL); + + if (ACPI_FAILURE(status) || !found) + return 0; + return -1; +} + static int __init eeepc_wmi_init(void) { int err; @@ -871,6 +894,16 @@ static int __init eeepc_wmi_init(void) return -ENODEV; } + if (eeepc_wmi_check_atkd()) { + pr_warning("WMI device present, but legacy ATKD device is also " + "present and enabled."); + pr_warning("You probably booted with acpi_osi=\"Linux\" or " + "acpi_osi=\"!Windows 2009\""); + pr_warning("Can't load eeepc-wmi, use default acpi_osi " + "(preferred) or eeepc-laptop"); + return -ENODEV; + } + platform_device = eeepc_wmi_add(); if (IS_ERR(platform_device)) { err = PTR_ERR(platform_device); |
