drivers/comedi/drivers/me4000.c

File Facts

System

Linux kernel

Corpus path

drivers/comedi/drivers/me4000.c

Extension

.c

Size

35591 bytes

Lines

1286

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/module.h
• linux/delay.h
• linux/interrupt.h
• linux/comedi/comedi_pci.h
• linux/comedi/comedi_8254.h
• plx9052.h

Detected Declarations

• struct me4000_private
• struct me4000_board
• enum me4000_boardid
• function me4000_xilinx_download
• function me4000_ai_reset
• function me4000_reset
• function me4000_ai_get_sample
• function me4000_ai_eoc
• function me4000_ai_insn_read
• function me4000_ai_cancel
• function me4000_ai_check_chanlist
• function me4000_ai_round_cmd_args
• function me4000_ai_write_chanlist
• function me4000_ai_do_cmd
• function me4000_ai_do_cmd_test
• function me4000_ai_isr
• function me4000_ao_insn_write
• function me4000_dio_insn_bits
• function me4000_dio_insn_config
• function me4000_auto_attach
• function me4000_detach
• function me4000_pci_probe

Annotated Snippet

static struct pci_driver me4000_pci_driver = {
	.name		= "me4000",
	.id_table	= me4000_pci_table,
	.probe		= me4000_pci_probe,
	.remove		= comedi_pci_auto_unconfig,
};
module_comedi_pci_driver(me4000_driver, me4000_pci_driver);

MODULE_AUTHOR("Comedi https://www.comedi.org");
MODULE_DESCRIPTION("Comedi driver for Meilhaus ME-4000 series boards");
MODULE_LICENSE("GPL");
MODULE_FIRMWARE(ME4000_FIRMWARE);

Annotation

• Immediate include surface: `linux/module.h`, `linux/delay.h`, `linux/interrupt.h`, `linux/comedi/comedi_pci.h`, `linux/comedi/comedi_8254.h`, `plx9052.h`.
• Detected declarations: `struct me4000_private`, `struct me4000_board`, `enum me4000_boardid`, `function me4000_xilinx_download`, `function me4000_ai_reset`, `function me4000_reset`, `function me4000_ai_get_sample`, `function me4000_ai_eoc`, `function me4000_ai_insn_read`, `function me4000_ai_cancel`.
• Atlas domain: Driver Families / drivers/comedi.
• Implementation status: pattern implementation candidate.
• 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.