drivers/mfd/mc13xxx-i2c.c

File Facts

System

Linux kernel

Corpus path

drivers/mfd/mc13xxx-i2c.c

Extension

.c

Size

2448 bytes

Lines

110

Domain

Driver Families

Bucket

drivers/mfd

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/slab.h
• linux/module.h
• linux/platform_device.h
• linux/mfd/core.h
• linux/mfd/mc13xxx.h
• linux/of.h
• linux/of_device.h
• linux/i2c.h
• linux/err.h
• mc13xxx.h

Detected Declarations

• function mc13xxx_i2c_probe
• function mc13xxx_i2c_remove
• function mc13xxx_i2c_init
• function mc13xxx_i2c_exit
• module init mc13xxx_i2c_init

Annotated Snippet

subsys_initcall(mc13xxx_i2c_init);

static void __exit mc13xxx_i2c_exit(void)
{
	i2c_del_driver(&mc13xxx_i2c_driver);
}
module_exit(mc13xxx_i2c_exit);

MODULE_DESCRIPTION("i2c driver for Freescale MC13XXX PMIC");
MODULE_AUTHOR("Marc Reilly <marc@cpdesign.com.au");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/slab.h`, `linux/module.h`, `linux/platform_device.h`, `linux/mfd/core.h`, `linux/mfd/mc13xxx.h`, `linux/of.h`, `linux/of_device.h`, `linux/i2c.h`.
• Detected declarations: `function mc13xxx_i2c_probe`, `function mc13xxx_i2c_remove`, `function mc13xxx_i2c_init`, `function mc13xxx_i2c_exit`, `module init mc13xxx_i2c_init`.
• Atlas domain: Driver Families / drivers/mfd.
• 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.