drivers/platform/x86/dell/dell-wmi-descriptor.h

File Facts

System

Linux kernel

Corpus path

drivers/platform/x86/dell/dell-wmi-descriptor.h

Extension

.h

Size

631 bytes

Lines

26

Domain

Driver Families

Bucket

drivers/platform

Inferred role

Driver Families: implementation source

Status

source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

• linux/wmi.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#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

Annotation

• Immediate include surface: `linux/wmi.h`.
• Atlas domain: Driver Families / drivers/platform.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.