drivers/comedi/drivers/jr3_pci.c

File Facts

System

Linux kernel

Corpus path

drivers/comedi/drivers/jr3_pci.c

Extension

.c

Size

19919 bytes

Lines

803

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

Dependency Surface

• linux/kernel.h
• linux/module.h
• linux/delay.h
• linux/ctype.h
• linux/hex.h
• linux/jiffies.h
• linux/slab.h
• linux/timer.h
• linux/comedi/comedi_pci.h
• jr3_pci.h

Detected Declarations

• struct jr3_pci_board
• struct jr3_pci_transform
• struct jr3_pci_poll_delay
• struct jr3_pci_dev_private
• struct jr3_pci_subdev_private
• struct six_axis_t
• enum jr3_pci_boardid
• enum jr3_pci_poll_state
• function poll_delay_min_max
• function is_complete
• function set_transforms
• function use_transform
• function use_offset
• function set_offset
• function set_full_scales
• function get_max_full_scales
• function jr3_pci_ai_read_chan
• function jr3_pci_ai_insn_read
• function jr3_pci_open
• function read_idm_word
• function jr3_check_firmware
• function jr3_write_firmware
• function jr3_download_firmware
• function jr3_pci_poll_subdevice
• function jr3_pci_poll_dev
• function jr3_pci_alloc_spriv
• function jr3_pci_show_copyright
• function jr3_pci_auto_attach
• function jr3_pci_detach
• function jr3_pci_pci_probe

Annotated Snippet

static struct pci_driver jr3_pci_pci_driver = {
	.name		= "jr3_pci",
	.id_table	= jr3_pci_pci_table,
	.probe		= jr3_pci_pci_probe,
	.remove		= comedi_pci_auto_unconfig,
};
module_comedi_pci_driver(jr3_pci_driver, jr3_pci_pci_driver);

MODULE_AUTHOR("Comedi https://www.comedi.org");
MODULE_DESCRIPTION("Comedi driver for JR3/PCI force sensor board");
MODULE_LICENSE("GPL");
MODULE_FIRMWARE("comedi/jr3pci.idm");

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/module.h`, `linux/delay.h`, `linux/ctype.h`, `linux/hex.h`, `linux/jiffies.h`, `linux/slab.h`, `linux/timer.h`.
• Detected declarations: `struct jr3_pci_board`, `struct jr3_pci_transform`, `struct jr3_pci_poll_delay`, `struct jr3_pci_dev_private`, `struct jr3_pci_subdev_private`, `struct six_axis_t`, `enum jr3_pci_boardid`, `enum jr3_pci_poll_state`, `function poll_delay_min_max`, `function is_complete`.
• 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.

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.