sound/hda/codecs/helpers/ideapad_s740.c
Source file repositories/reference/linux-study-clean/sound/hda/codecs/helpers/ideapad_s740.c
File Facts
- System
- Linux kernel
- Corpus path
sound/hda/codecs/helpers/ideapad_s740.c- Extension
.c- Size
- 19734 bytes
- Lines
- 493
- Domain
- Driver Families
- Bucket
- sound/hda
- 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
- No C-style include directives detected by the generator.
Detected Declarations
function alc285_fixup_ideapad_s740_coef
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0
/* Fixes for Lenovo Ideapad S740, to be included from codec driver */
static const struct hda_verb alc285_ideapad_s740_coefs[] = {
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x10 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0320 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x24 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0041 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x24 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0041 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x29 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x29 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0000 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0000 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0000 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0000 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0000 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0000 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x29 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x29 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x007f },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0000 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0000 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x007f },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0000 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0000 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x29 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x29 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0001 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0000 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0001 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0001 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0000 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0001 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x29 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x29 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x003c },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0000 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0011 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x003c },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0000 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0011 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x29 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x29 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x000c },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0000 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x001a },
{ 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x000c },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0000 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x001a },
{ 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x29 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x29 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x000f },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0000 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0042 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x000f },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0000 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0042 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x29 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x29 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0010 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0000 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x0040 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },Annotation
- Detected declarations: `function alc285_fixup_ideapad_s740_coef`.
- Atlas domain: Driver Families / sound/hda.
- 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.