sound/pci/lola/lola.c

File Facts

System

Linux kernel

Corpus path

sound/pci/lola/lola.c

Extension

.c

Size

18409 bytes

Lines

715

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.
• 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/kernel.h
• linux/init.h
• linux/module.h
• linux/dma-mapping.h
• linux/delay.h
• linux/interrupt.h
• linux/slab.h
• linux/pci.h
• sound/core.h
• sound/control.h
• sound/pcm.h
• sound/initval.h
• lola.h

Detected Declarations

• function corb_send_verb
• function lola_queue_unsol_event
• function lola_update_rirb
• function rirb_get_response
• function lola_codec_write
• function lola_codec_read
• function lola_codec_flush
• function lola_interrupt
• function reset_controller
• function lola_irq_enable
• function lola_irq_disable
• function setup_corb_rirb
• function stop_corb_rirb
• function lola_reset_setups
• function lola_parse_tree
• function lola_stop_hw
• function lola_free
• function lola_create
• function __lola_probe
• function lola_probe

Annotated Snippet

static struct pci_driver lola_driver = {
	.name = KBUILD_MODNAME,
	.id_table = lola_ids,
	.probe = lola_probe,
};

module_pci_driver(lola_driver);

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/init.h`, `linux/module.h`, `linux/dma-mapping.h`, `linux/delay.h`, `linux/interrupt.h`, `linux/slab.h`, `linux/pci.h`.
• Detected declarations: `function corb_send_verb`, `function lola_queue_unsol_event`, `function lola_update_rirb`, `function rirb_get_response`, `function lola_codec_write`, `function lola_codec_read`, `function lola_codec_flush`, `function lola_interrupt`, `function reset_controller`, `function lola_irq_enable`.
• 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.