| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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| 2 | /* |
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| 3 | * Dell WMI descriptor driver |
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| 4 | * |
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| 5 | * Copyright (c) 2017 Dell Inc. |
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| 6 | */ |
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| 7 | |
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| 8 | #ifndef _DELL_WMI_DESCRIPTOR_H_ |
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| 9 | #define _DELL_WMI_DESCRIPTOR_H_ |
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| 10 | |
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| 11 | #include <linux/wmi.h> |
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| 12 | |
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| 13 | /* possible return values: |
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| 14 | * -ENODEV: Descriptor GUID missing from WMI bus |
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| 15 | * -EPROBE_DEFER: probing for dell-wmi-descriptor not yet run |
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| 16 | * 0: valid descriptor, successfully probed |
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| 17 | * < 0: invalid descriptor, don't probe dependent devices |
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| 18 | */ |
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| 19 | int dell_wmi_get_descriptor_valid(void); |
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| 20 | |
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| 21 | bool dell_wmi_get_interface_version(u32 *version); |
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| 22 | bool dell_wmi_get_size(u32 *size); |
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| 23 | bool dell_wmi_get_hotfix(u32 *hotfix); |
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| 24 | |
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| 25 | #endif |
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| 26 | |
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