sound/core/Kconfig

Source file repositories/reference/linux-study-clean/sound/core/Kconfig

File Facts

System: Linux kernel
Corpus path: sound/core/Kconfig
Extension: [no extension]
Size: 7736 bytes
Lines: 271
Domain: Driver Families
Bucket: sound/core
Inferred role: Driver Families: build/configuration rule
Status: atlas-only

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.

Dependency Surface

No C-style include directives detected by the generator.

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0-only
# ALSA soundcard-configuration
config SND_TIMER
	tristate

config SND_PCM
	tristate
	select SND_TIMER if SND_PCM_TIMER

config SND_PCM_ELD
	bool

config SND_PCM_IEC958
	bool

config SND_DMAENGINE_PCM
	tristate

config SND_HWDEP
	tristate

config SND_SEQ_DEVICE
	tristate

config SND_RAWMIDI
	tristate
	select SND_SEQ_DEVICE if SND_SEQUENCER != n

config SND_UMP
	tristate
	select SND_RAWMIDI

config SND_UMP_LEGACY_RAWMIDI
	bool "Legacy raw MIDI support for UMP streams"
	depends on SND_UMP
	help
	  This option enables the legacy raw MIDI support for UMP streams.
	  When this option is set, an additional rawmidi device for the
	  legacy MIDI 1.0 byte streams is created for each UMP Endpoint.
	  The device contains 16 substreams corresponding to UMP groups.

config SND_CORE_TEST
	tristate "Sound core KUnit test"
	depends on KUNIT
	select SND_PCM
	default KUNIT_ALL_TESTS
	help
	  This options enables the sound core functions KUnit test.

	  KUnit tests run during boot and output the results to the debug
	  log in TAP format (https://testanything.org/). Only useful for
	  kernel devs running KUnit test harness and are not for inclusion
	  into a production build.

	  For more information on KUnit and unit tests in general, refer
	  to the KUnit documentation in Documentation/dev-tools/kunit/.


config SND_COMPRESS_OFFLOAD
	tristate

config SND_COMPRESS_ACCEL
	bool

config SND_JACK
	bool

# enable input device support in jack layer
config SND_JACK_INPUT_DEV
	bool

Annotation

Atlas domain: Driver Families / sound/core.
Implementation status: atlas-only.

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.