drivers/platform/surface/surface_acpi_notify.c

File Facts

System

Linux kernel

Corpus path

drivers/platform/surface/surface_acpi_notify.c

Extension

.c

Size

22883 bytes

Lines

885

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/unaligned.h
• linux/acpi.h
• linux/delay.h
• linux/jiffies.h
• linux/kernel.h
• linux/module.h
• linux/notifier.h
• linux/platform_device.h
• linux/rwsem.h
• linux/surface_aggregator/controller.h
• linux/surface_acpi_notify.h

Detected Declarations

• struct san_data
• struct san_rqsg_if
• struct san_event_work
• struct gsb_data_in
• struct gsb_data_rqsx
• struct gsb_data_etwl
• struct gsb_data_out
• struct gsb_buffer
• enum san_dsm_event_fn
• enum sam_event_cid_bat
• enum sam_event_cid_tmp
• enum san_gsb_request_cv
• function san_set_rqsg_interface_device
• function san_client_link
• function san_dgpu_notifier_register
• function san_dgpu_notifier_unregister
• function san_dgpu_notifier_call
• function san_acpi_notify_event
• function san_evt_bat_adp
• function san_evt_bat_bix
• function san_evt_bat_bst
• function san_evt_bat_dptf
• function san_evt_bat_delay
• function san_evt_bat
• function san_evt_bat_workfn
• function san_evt_bat_nf
• function san_evt_tmp_trip
• function san_evt_tmp
• function san_evt_tmp_nf
• function san_etwl
• function gsb_rqsx_response_error
• function gsb_rqsx_response_success
• function san_rqst_fixup_suspended
• function san_rqst
• function san_rqsg
• function san_opreg_handler
• function san_events_register
• function san_events_unregister
• function san_consumer_setup
• function san_consumer_links_setup
• function san_probe
• function san_remove
• function san_init
• function san_exit
• module init san_init
• export san_client_link
• export san_dgpu_notifier_register
• export san_dgpu_notifier_unregister

Annotated Snippet

module_init(san_init);

static void __exit san_exit(void)
{
	platform_driver_unregister(&surface_acpi_notify);
	destroy_workqueue(san_wq);
}
module_exit(san_exit);

MODULE_AUTHOR("Maximilian Luz <luzmaximilian@gmail.com>");
MODULE_DESCRIPTION("Surface ACPI Notify driver for Surface System Aggregator Module");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/unaligned.h`, `linux/acpi.h`, `linux/delay.h`, `linux/jiffies.h`, `linux/kernel.h`, `linux/module.h`, `linux/notifier.h`, `linux/platform_device.h`.
• Detected declarations: `struct san_data`, `struct san_rqsg_if`, `struct san_event_work`, `struct gsb_data_in`, `struct gsb_data_rqsx`, `struct gsb_data_etwl`, `struct gsb_data_out`, `struct gsb_buffer`, `enum san_dsm_event_fn`, `enum sam_event_cid_bat`.
• 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.