include/sound/opl4.h

File Facts

System

Linux kernel

Corpus path

include/sound/opl4.h

Extension

.h

Size

459 bytes

Lines

20

Domain

Driver Families

Bucket

include/sound

Inferred role

Driver Families: implementation source

Status

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

Dependency Surface

• sound/opl3.h

Detected Declarations

• struct snd_opl4

Annotated Snippet

#ifndef __SOUND_OPL4_H
#define __SOUND_OPL4_H

/*
 * Global definitions for the OPL4 driver
 * Copyright (c) 2003 by Clemens Ladisch <clemens@ladisch.de>
 */

#include <sound/opl3.h>

struct snd_opl4;

extern int snd_opl4_create(struct snd_card *card,
			   unsigned long fm_port, unsigned long pcm_port,
			   int seq_device,
			   struct snd_opl3 **opl3, struct snd_opl4 **opl4);

#endif /* __SOUND_OPL4_H */

Annotation

• Immediate include surface: `sound/opl3.h`.
• Detected declarations: `struct snd_opl4`.
• Atlas domain: Driver Families / include/sound.
• Implementation status: source 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.