drivers/platform/chrome/cros_ec_lpc.c

File Facts

System

Linux kernel

Corpus path

drivers/platform/chrome/cros_ec_lpc.c

Extension

.c

Size

24293 bytes

Lines

914

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/delay.h
• linux/io.h
• linux/interrupt.h
• linux/kobject.h
• linux/module.h
• linux/platform_data/cros_ec_commands.h
• linux/platform_data/cros_ec_proto.h
• linux/platform_device.h
• linux/printk.h
• linux/reboot.h
• linux/suspend.h
• cros_ec.h
• cros_ec_lpc_mec.h

Detected Declarations

• struct lpc_driver_data
• struct cros_ec_lpc
• function cros_ec_lpc_read_bytes
• function cros_ec_lpc_write_bytes
• function cros_ec_lpc_mec_read_bytes
• function cros_ec_lpc_mec_write_bytes
• function cros_ec_lpc_direct_read
• function cros_ec_lpc_direct_write
• function ec_response_timed_out
• function cros_ec_pkt_xfer_lpc
• function cros_ec_cmd_xfer_lpc
• function cros_ec_lpc_readmem
• function cros_ec_lpc_acpi_notify
• function cros_ec_lpc_parse_device
• function cros_ec_lpc_resources
• function cros_ec_lpc_probe
• function Laptop
• function cros_ec_lpc_remove
• function cros_ec_lpc_prepare
• function cros_ec_lpc_complete
• function cros_ec_lpc_suspend_late
• function cros_ec_lpc_resume_early
• function cros_ec_lpc_init
• function cros_ec_lpc_exit
• module init cros_ec_lpc_init

Annotated Snippet

module_init(cros_ec_lpc_init);
module_exit(cros_ec_lpc_exit);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("ChromeOS EC LPC driver");

Annotation

• Immediate include surface: `linux/acpi.h`, `linux/dmi.h`, `linux/delay.h`, `linux/io.h`, `linux/interrupt.h`, `linux/kobject.h`, `linux/module.h`, `linux/platform_data/cros_ec_commands.h`.
• Detected declarations: `struct lpc_driver_data`, `struct cros_ec_lpc`, `function cros_ec_lpc_read_bytes`, `function cros_ec_lpc_write_bytes`, `function cros_ec_lpc_mec_read_bytes`, `function cros_ec_lpc_mec_write_bytes`, `function cros_ec_lpc_direct_read`, `function cros_ec_lpc_direct_write`, `function ec_response_timed_out`, `function cros_ec_pkt_xfer_lpc`.
• 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.