drivers/mfd/lpc_sch.c

File Facts

System

Linux kernel

Corpus path

drivers/mfd/lpc_sch.c

Extension

.c

Size

4567 bytes

Lines

189

Domain

Driver Families

Bucket

drivers/mfd

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern 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.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• 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/kernel.h
• linux/module.h
• linux/errno.h
• linux/acpi.h
• linux/pci.h
• linux/mfd/core.h

Detected Declarations

• struct lpc_sch_info
• enum sch_chipsets
• function lpc_sch_get_io
• function lpc_sch_populate_cell
• function lpc_sch_probe
• function lpc_sch_remove

Annotated Snippet

static struct pci_driver lpc_sch_driver = {
	.name		= "lpc_sch",
	.id_table	= lpc_sch_ids,
	.probe		= lpc_sch_probe,
	.remove		= lpc_sch_remove,
};

module_pci_driver(lpc_sch_driver);

MODULE_AUTHOR("Denis Turischev <denis@compulab.co.il>");
MODULE_DESCRIPTION("LPC interface for Intel Poulsbo SCH");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/module.h`, `linux/errno.h`, `linux/acpi.h`, `linux/pci.h`, `linux/mfd/core.h`.
• Detected declarations: `struct lpc_sch_info`, `enum sch_chipsets`, `function lpc_sch_get_io`, `function lpc_sch_populate_cell`, `function lpc_sch_probe`, `function lpc_sch_remove`.
• Atlas domain: Driver Families / drivers/mfd.
• Implementation status: pattern 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.