drivers/comedi/drivers/addi_apci_2032.c

File Facts

System

Linux kernel

Corpus path

drivers/comedi/drivers/addi_apci_2032.c

Extension

.c

Size

8502 bytes

Lines

331

Domain

Driver Families

Bucket

drivers/comedi

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• 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/interrupt.h
• linux/slab.h
• linux/comedi/comedi_pci.h
• addi_watchdog.h

Detected Declarations

• struct apci2032_int_private
• function apci2032_do_insn_bits
• function apci2032_int_insn_bits
• function apci2032_int_stop
• function apci2032_int_cmdtest
• function apci2032_int_cmd
• function apci2032_int_cancel
• function apci2032_interrupt
• function apci2032_reset
• function apci2032_auto_attach
• function apci2032_detach
• function apci2032_pci_probe

Annotated Snippet

static struct pci_driver apci2032_pci_driver = {
	.name		= "addi_apci_2032",
	.id_table	= apci2032_pci_table,
	.probe		= apci2032_pci_probe,
	.remove		= comedi_pci_auto_unconfig,
};
module_comedi_pci_driver(apci2032_driver, apci2032_pci_driver);

MODULE_AUTHOR("Comedi https://www.comedi.org");
MODULE_DESCRIPTION("ADDI-DATA APCI-2032, 32 channel DO boards");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/interrupt.h`, `linux/slab.h`, `linux/comedi/comedi_pci.h`, `addi_watchdog.h`.
• Detected declarations: `struct apci2032_int_private`, `function apci2032_do_insn_bits`, `function apci2032_int_insn_bits`, `function apci2032_int_stop`, `function apci2032_int_cmdtest`, `function apci2032_int_cmd`, `function apci2032_int_cancel`, `function apci2032_interrupt`, `function apci2032_reset`, `function apci2032_auto_attach`.
• Atlas domain: Driver Families / drivers/comedi.
• Implementation status: pattern implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.