drivers/comedi/drivers/ni_routes.c

File Facts

System

Linux kernel

Corpus path

drivers/comedi/drivers/ni_routes.c

Extension

.c

Size

16164 bytes

Lines

559

Domain

Driver Families

Bucket

drivers/comedi

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

Dependency Surface

• linux/module.h
• linux/slab.h
• linux/bsearch.h
• linux/sort.h
• linux/comedi.h
• ni_routes.h
• ni_routing/ni_route_values.h
• ni_routing/ni_device_routes.h

Detected Declarations

• function ni_find_valid_routes
• function ni_find_device_routes
• function ni_assign_device_routes
• function ni_count_valid_routes
• function ni_get_valid_routes
• function ni_is_cmd_dest
• function _ni_sort_destcmp
• function _ni_sort_srccmp
• function ni_sort_device_routes
• function ni_sort_all_device_routes
• function _ni_bsearch_destcmp
• function _ni_bsearch_srccmp
• function ni_find_route_set
• function ni_route_set_has_source
• function ni_lookup_route_register
• function ni_route_to_register
• function ni_find_route_source
• function ni_routes_module_init
• function ni_routes_module_exit
• module init ni_routes_module_init
• export ni_assign_device_routes
• export ni_count_valid_routes
• export ni_get_valid_routes
• export ni_is_cmd_dest
• export ni_sort_device_routes
• export ni_find_route_set
• export ni_route_set_has_source
• export ni_lookup_route_register
• export ni_route_to_register
• export ni_find_route_source

Annotated Snippet

module_init(ni_routes_module_init);
module_exit(ni_routes_module_exit);

MODULE_AUTHOR("Comedi https://www.comedi.org");
MODULE_DESCRIPTION("Comedi helper for routing signals-->terminals for NI");
MODULE_LICENSE("GPL");
/* **** END simple module entry/exit functions **** */

Annotation

• Immediate include surface: `linux/module.h`, `linux/slab.h`, `linux/bsearch.h`, `linux/sort.h`, `linux/comedi.h`, `ni_routes.h`, `ni_routing/ni_route_values.h`, `ni_routing/ni_device_routes.h`.
• Detected declarations: `function ni_find_valid_routes`, `function ni_find_device_routes`, `function ni_assign_device_routes`, `function ni_count_valid_routes`, `function ni_get_valid_routes`, `function ni_is_cmd_dest`, `function _ni_sort_destcmp`, `function _ni_sort_srccmp`, `function ni_sort_device_routes`, `function ni_sort_all_device_routes`.
• Atlas domain: Driver Families / drivers/comedi.
• Implementation status: integration implementation candidate.

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.