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| author |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-02-01 00:41:33 -0800 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-02-01 00:41:33 -0800 |
| commit | 10a558374f3751cf4eb55143008975641dfc2cf4 (patch) | |
| tree | aab0def9d2289f6520ffb62ec4c1d738135447c4 /drivers/platform/x86/dell-wmi-descriptor.h | |
| parent | Input: goodix - use generic touchscreen_properties (diff) | |
| parent | Linux 4.15 (diff) | |
| download | linux-dev-10a558374f3751cf4eb55143008975641dfc2cf4.tar.xz linux-dev-10a558374f3751cf4eb55143008975641dfc2cf4.zip | |
Merge tag 'v4.15' into next
Sync with mainline to get in trackpoint updates and other changes.
Diffstat (limited to 'drivers/platform/x86/dell-wmi-descriptor.h')
| -rw-r--r-- | drivers/platform/x86/dell-wmi-descriptor.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/platform/x86/dell-wmi-descriptor.h b/drivers/platform/x86/dell-wmi-descriptor.h new file mode 100644 index 000000000000..a6123a4d06a7 --- /dev/null +++ b/drivers/platform/x86/dell-wmi-descriptor.h @@ -0,0 +1,28 @@ +/* + * Dell WMI descriptor driver + * + * Copyright (c) 2017 Dell Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _DELL_WMI_DESCRIPTOR_H_ +#define _DELL_WMI_DESCRIPTOR_H_ + +#include <linux/wmi.h> + +/* possible return values: + * -ENODEV: Descriptor GUID missing from WMI bus + * -EPROBE_DEFER: probing for dell-wmi-descriptor not yet run + * 0: valid descriptor, successfully probed + * < 0: invalid descriptor, don't probe dependent devices + */ +int dell_wmi_get_descriptor_valid(void); + +bool dell_wmi_get_interface_version(u32 *version); +bool dell_wmi_get_size(u32 *size); +bool dell_wmi_get_hotfix(u32 *hotfix); + +#endif |