drivers/platform/surface/surface_gpe.c

File Facts

System

Linux kernel

Corpus path

drivers/platform/surface/surface_gpe.c

Extension

.c

Size

9066 bytes

Lines

353

Domain

Driver Families

Bucket

drivers/platform

Inferred role

Driver Families: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/acpi.h
• linux/dmi.h
• linux/kernel.h
• linux/module.h
• linux/platform_device.h

Detected Declarations

• struct surface_lid_device
• function surface_lid_enable_wakeup
• function surface_gpe_suspend
• function surface_gpe_resume
• function surface_gpe_probe
• function surface_gpe_remove
• function surface_gpe_init
• function surface_gpe_exit
• module init surface_gpe_init

Annotated Snippet

module_init(surface_gpe_init);

static void __exit surface_gpe_exit(void)
{
	struct fwnode_handle *fwnode = surface_gpe_device->dev.fwnode;

	platform_device_unregister(surface_gpe_device);
	platform_driver_unregister(&surface_gpe_driver);
	fwnode_remove_software_node(fwnode);
}
module_exit(surface_gpe_exit);

MODULE_AUTHOR("Maximilian Luz <luzmaximilian@gmail.com>");
MODULE_DESCRIPTION("Surface GPE/Lid Driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("dmi:*:svnMicrosoftCorporation:pnSurface*:*");

Annotation

• Immediate include surface: `linux/acpi.h`, `linux/dmi.h`, `linux/kernel.h`, `linux/module.h`, `linux/platform_device.h`.
• Detected declarations: `struct surface_lid_device`, `function surface_lid_enable_wakeup`, `function surface_gpe_suspend`, `function surface_gpe_resume`, `function surface_gpe_probe`, `function surface_gpe_remove`, `function surface_gpe_init`, `function surface_gpe_exit`, `module init surface_gpe_init`.
• Atlas domain: Driver Families / drivers/platform.
• Implementation status: integration 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.