drivers/net/can/sja1000/sja1000_isa.c

File Facts

System

Linux kernel

Corpus path

drivers/net/can/sja1000/sja1000_isa.c

Extension

.c

Size

7833 bytes

Lines

313

Domain

Driver Families

Bucket

drivers/net

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

Dependency Surface

• linux/kernel.h
• linux/module.h
• linux/platform_device.h
• linux/interrupt.h
• linux/netdevice.h
• linux/delay.h
• linux/irq.h
• linux/io.h
• linux/can/dev.h
• linux/can/platform/sja1000.h
• sja1000.h

Detected Declarations

• function sja1000_isa_mem_read_reg
• function sja1000_isa_mem_write_reg
• function sja1000_isa_port_read_reg
• function sja1000_isa_port_write_reg
• function sja1000_isa_port_read_reg_indirect
• function sja1000_isa_port_write_reg_indirect
• function sja1000_isa_probe
• function sja1000_isa_remove
• function sja1000_isa_init
• function sja1000_isa_exit
• module init sja1000_isa_init

Annotated Snippet

module_init(sja1000_isa_init);
module_exit(sja1000_isa_exit);

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/module.h`, `linux/platform_device.h`, `linux/interrupt.h`, `linux/netdevice.h`, `linux/delay.h`, `linux/irq.h`, `linux/io.h`.
• Detected declarations: `function sja1000_isa_mem_read_reg`, `function sja1000_isa_mem_write_reg`, `function sja1000_isa_port_read_reg`, `function sja1000_isa_port_write_reg`, `function sja1000_isa_port_read_reg_indirect`, `function sja1000_isa_port_write_reg_indirect`, `function sja1000_isa_probe`, `function sja1000_isa_remove`, `function sja1000_isa_init`, `function sja1000_isa_exit`.
• Atlas domain: Driver Families / drivers/net.
• 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.