include/sound/wm8903.h

File Facts

System

Linux kernel

Corpus path

include/sound/wm8903.h

Extension

.h

Size

15377 bytes

Lines

264

Domain

Driver Families

Bucket

include/sound

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

• struct wm8903_platform_data

Annotated Snippet

struct wm8903_platform_data {
	bool irq_active_low;   /* Set if IRQ active low, default high */

        /* Default register value for R6 (Mic bias), used to configure
	 * microphone detection.  In conjunction with gpio_cfg this
	 * can be used to route the microphone status signals out onto
	 * the GPIOs for use with snd_soc_jack_add_gpios().
	 */
	u16 micdet_cfg;

	int micdet_delay;      /* Delay after microphone detection (ms) */

	int gpio_base;
	u32 gpio_cfg[WM8903_NUM_GPIO]; /* Default register values for GPIO pin mux */
};

#endif

Annotation

• Detected declarations: `struct wm8903_platform_data`.
• Atlas domain: Driver Families / include/sound.
• 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.