drivers/i2c/busses/i2c-hydra.c

File Facts

System

Linux kernel

Corpus path

drivers/i2c/busses/i2c-hydra.c

Extension

.c

Size

3462 bytes

Lines

151

Domain

Driver Families

Bucket

drivers/i2c

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/kernel.h
• linux/module.h
• linux/pci.h
• linux/types.h
• linux/i2c.h
• linux/i2c-algo-bit.h
• linux/io.h
• asm/hydra.h

Detected Declarations

• function Copyright
• function pdregr
• function hydra_bit_setscl
• function hydra_bit_setsda
• function hydra_bit_getscl
• function hydra_bit_getsda
• function hydra_probe
• function hydra_remove

Annotated Snippet

static struct pci_driver hydra_driver = {
	.name		= "hydra_smbus",
	.id_table	= hydra_ids,
	.probe		= hydra_probe,
	.remove		= hydra_remove,
};

module_pci_driver(hydra_driver);

MODULE_AUTHOR("Geert Uytterhoeven <geert@linux-m68k.org>");
MODULE_DESCRIPTION("i2c for Apple Hydra Mac I/O");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/module.h`, `linux/pci.h`, `linux/types.h`, `linux/i2c.h`, `linux/i2c-algo-bit.h`, `linux/io.h`, `asm/hydra.h`.
• Detected declarations: `function Copyright`, `function pdregr`, `function hydra_bit_setscl`, `function hydra_bit_setsda`, `function hydra_bit_getscl`, `function hydra_bit_getsda`, `function hydra_probe`, `function hydra_remove`.
• Atlas domain: Driver Families / drivers/i2c.
• 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.