drivers/i2c/busses/scx200_acb.c

File Facts

System

Linux kernel

Corpus path

drivers/i2c/busses/scx200_acb.c

Extension

.c

Size

13262 bytes

Lines

597

Domain

Driver Families

Bucket

drivers/i2c

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• 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/module.h
• linux/errno.h
• linux/kernel.h
• linux/init.h
• linux/i2c.h
• linux/pci.h
• linux/platform_device.h
• linux/delay.h
• linux/mutex.h
• linux/slab.h
• linux/io.h
• linux/scx200.h

Detected Declarations

• struct scx200_acb_iface
• enum scx200_acb_state
• function scx200_acb_machine
• function scx200_acb_poll
• function scx200_acb_reset
• function scx200_acb_smbus_xfer
• function scx200_acb_func
• function scx200_acb_probe
• function scx200_acb_create
• function scx200_probe
• function scx200_cleanup_iface
• function scx200_remove
• function scx200_scan_isa
• function scx200_acb_init
• function scx200_acb_cleanup
• module init scx200_acb_init

Annotated Snippet

module_init(scx200_acb_init);
module_exit(scx200_acb_cleanup);

Annotation

• Immediate include surface: `linux/module.h`, `linux/errno.h`, `linux/kernel.h`, `linux/init.h`, `linux/i2c.h`, `linux/pci.h`, `linux/platform_device.h`, `linux/delay.h`.
• Detected declarations: `struct scx200_acb_iface`, `enum scx200_acb_state`, `function scx200_acb_machine`, `function scx200_acb_poll`, `function scx200_acb_reset`, `function scx200_acb_smbus_xfer`, `function scx200_acb_func`, `function scx200_acb_probe`, `function scx200_acb_create`, `function scx200_probe`.
• Atlas domain: Driver Families / drivers/i2c.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.