drivers/platform/chrome/cros_usbpd_notify.c

File Facts

System

Linux kernel

Corpus path

drivers/platform/chrome/cros_usbpd_notify.c

Extension

.c

Size

7552 bytes

Lines

282

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/fwnode.h
• linux/mod_devicetable.h
• linux/module.h
• linux/platform_data/cros_ec_proto.h
• linux/platform_data/cros_usbpd_notify.h
• linux/platform_device.h

Detected Declarations

• struct cros_usbpd_notify_data
• function cros_usbpd_register_notify
• function cros_usbpd_register_notify
• function cros_usbpd_get_event_and_notify
• function cros_usbpd_notify_acpi
• function cros_usbpd_notify_probe_acpi
• function cros_usbpd_notify_remove_acpi
• function cros_usbpd_notify_plat
• function cros_usbpd_notify_probe_plat
• function cros_usbpd_notify_remove_plat
• function cros_usbpd_notify_init
• function cros_usbpd_notify_exit
• module init cros_usbpd_notify_init
• export cros_usbpd_register_notify
• export cros_usbpd_unregister_notify

Annotated Snippet

module_init(cros_usbpd_notify_init);
module_exit(cros_usbpd_notify_exit);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("ChromeOS power delivery notifier device");
MODULE_AUTHOR("Jon Flatley <jflat@chromium.org>");

Annotation

• Immediate include surface: `linux/acpi.h`, `linux/fwnode.h`, `linux/mod_devicetable.h`, `linux/module.h`, `linux/platform_data/cros_ec_proto.h`, `linux/platform_data/cros_usbpd_notify.h`, `linux/platform_device.h`.
• Detected declarations: `struct cros_usbpd_notify_data`, `function cros_usbpd_register_notify`, `function cros_usbpd_register_notify`, `function cros_usbpd_get_event_and_notify`, `function cros_usbpd_notify_acpi`, `function cros_usbpd_notify_probe_acpi`, `function cros_usbpd_notify_remove_acpi`, `function cros_usbpd_notify_plat`, `function cros_usbpd_notify_probe_plat`, `function cros_usbpd_notify_remove_plat`.
• 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.