drivers/comedi/drivers/c6xdigio.c

File Facts

System

Linux kernel

Corpus path

drivers/comedi/drivers/c6xdigio.c

Extension

.c

Size

7920 bytes

Lines

324

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/kernel.h
• linux/module.h
• linux/sched.h
• linux/mm.h
• linux/errno.h
• linux/interrupt.h
• linux/timex.h
• linux/timer.h
• linux/io.h
• linux/pnp.h
• linux/comedi/comedidev.h

Detected Declarations

• function Copyright
• function c6xdigio_write_data
• function c6xdigio_get_encoder_bits
• function c6xdigio_pwm_write
• function c6xdigio_encoder_read
• function c6xdigio_pwm_insn_write
• function c6xdigio_pwm_insn_read
• function c6xdigio_encoder_insn_read
• function c6xdigio_init
• function c6xdigio_attach
• function c6xdigio_module_init
• function c6xdigio_module_exit
• module init c6xdigio_module_init

Annotated Snippet

module_init(c6xdigio_module_init);

static void __exit c6xdigio_module_exit(void)
{
	if (c6xdigio_pnp_registered)
		pnp_unregister_driver(&c6xdigio_pnp_driver);
	comedi_driver_unregister(&c6xdigio_driver);
}
module_exit(c6xdigio_module_exit);

MODULE_AUTHOR("Comedi https://www.comedi.org");
MODULE_DESCRIPTION("Comedi driver for the C6x_DIGIO DSP daughter card");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/module.h`, `linux/sched.h`, `linux/mm.h`, `linux/errno.h`, `linux/interrupt.h`, `linux/timex.h`, `linux/timer.h`.
• Detected declarations: `function Copyright`, `function c6xdigio_write_data`, `function c6xdigio_get_encoder_bits`, `function c6xdigio_pwm_write`, `function c6xdigio_encoder_read`, `function c6xdigio_pwm_insn_write`, `function c6xdigio_pwm_insn_read`, `function c6xdigio_encoder_insn_read`, `function c6xdigio_init`, `function c6xdigio_attach`.
• 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.