sound/core/hrtimer.c
Source file repositories/reference/linux-study-clean/sound/core/hrtimer.c
File Facts
- System
- Linux kernel
- Corpus path
sound/core/hrtimer.c- Extension
.c- Size
- 3700 bytes
- Lines
- 168
- Domain
- Driver Families
- Bucket
- sound/core
- 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.
- Allocates kernel memory; connect allocation flags and lifetime to context constraints.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/init.hlinux/slab.hlinux/string.hlinux/module.hlinux/moduleparam.hlinux/hrtimer.hsound/core.hsound/timer.h
Detected Declarations
struct snd_hrtimerfunction snd_hrtimer_callbackfunction scoped_guardfunction snd_hrtimer_openfunction snd_hrtimer_closefunction snd_hrtimer_startfunction snd_hrtimer_stopfunction snd_hrtimer_initfunction snd_hrtimer_exitmodule init snd_hrtimer_init
Annotated Snippet
module_init(snd_hrtimer_init);
module_exit(snd_hrtimer_exit);Annotation
- Immediate include surface: `linux/init.h`, `linux/slab.h`, `linux/string.h`, `linux/module.h`, `linux/moduleparam.h`, `linux/hrtimer.h`, `sound/core.h`, `sound/timer.h`.
- Detected declarations: `struct snd_hrtimer`, `function snd_hrtimer_callback`, `function scoped_guard`, `function snd_hrtimer_open`, `function snd_hrtimer_close`, `function snd_hrtimer_start`, `function snd_hrtimer_stop`, `function snd_hrtimer_init`, `function snd_hrtimer_exit`, `module init snd_hrtimer_init`.
- Atlas domain: Driver Families / sound/core.
- 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.