sound/pci/rme32.c

File Facts

System

Linux kernel

Corpus path

sound/pci/rme32.c

Extension

.c

Size

55153 bytes

Lines

1878

Domain

Driver Families

Bucket

sound/pci

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/delay.h
• linux/gfp.h
• linux/init.h
• linux/interrupt.h
• linux/pci.h
• linux/module.h
• linux/io.h
• sound/core.h
• sound/info.h
• sound/control.h
• sound/pcm.h
• sound/pcm_params.h
• sound/pcm-indirect.h
• sound/asoundef.h
• sound/initval.h

Detected Declarations

• struct rme32
• function snd_rme32_pcm_byteptr
• function snd_rme32_playback_silence
• function snd_rme32_playback_copy
• function snd_rme32_capture_copy
• function snd_rme32_reset_dac
• function snd_rme32_playback_getrate
• function snd_rme32_capture_getrate
• function snd_rme32_playback_setrate
• function snd_rme32_setclockmode
• function snd_rme32_getclockmode
• function snd_rme32_setinputtype
• function snd_rme32_getinputtype
• function snd_rme32_setframelog
• function snd_rme32_setformat
• function snd_rme32_playback_hw_params
• function snd_rme32_capture_hw_params
• function snd_rme32_pcm_start
• function snd_rme32_pcm_stop
• function snd_rme32_interrupt
• function snd_rme32_set_buffer_constraint
• function snd_rme32_playback_spdif_open
• function scoped_guard
• function snd_rme32_capture_spdif_open
• function scoped_guard
• function snd_rme32_playback_adat_open
• function scoped_guard
• function snd_rme32_capture_adat_open
• function scoped_guard
• function snd_rme32_playback_close
• function scoped_guard
• function snd_rme32_capture_close
• function snd_rme32_playback_prepare
• function snd_rme32_capture_prepare
• function snd_rme32_pcm_trigger
• function snd_rme32_playback_pointer
• function snd_rme32_capture_pointer
• function snd_rme32_pb_trans_copy
• function snd_rme32_playback_fd_ack
• function snd_rme32_cp_trans_copy
• function snd_rme32_capture_fd_ack
• function snd_rme32_playback_fd_pointer
• function snd_rme32_capture_fd_pointer
• function snd_rme32_free
• function snd_rme32_free_spdif_pcm
• function snd_rme32_free_adat_pcm
• function snd_rme32_create
• function snd_rme32_proc_read

Annotated Snippet

static struct pci_driver rme32_driver = {
	.name =		KBUILD_MODNAME,
	.id_table =	snd_rme32_ids,
	.probe =	snd_rme32_probe,
};

module_pci_driver(rme32_driver);

Annotation

• Immediate include surface: `linux/delay.h`, `linux/gfp.h`, `linux/init.h`, `linux/interrupt.h`, `linux/pci.h`, `linux/module.h`, `linux/io.h`, `sound/core.h`.
• Detected declarations: `struct rme32`, `function snd_rme32_pcm_byteptr`, `function snd_rme32_playback_silence`, `function snd_rme32_playback_copy`, `function snd_rme32_capture_copy`, `function snd_rme32_reset_dac`, `function snd_rme32_playback_getrate`, `function snd_rme32_capture_getrate`, `function snd_rme32_playback_setrate`, `function snd_rme32_setclockmode`.
• Atlas domain: Driver Families / sound/pci.
• Implementation status: pattern implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.