sound/usb/6fire/control.h

File Facts

System

Linux kernel

Corpus path

sound/usb/6fire/control.h

Extension

.h

Size

1201 bytes

Lines

54

Domain

Driver Families

Bucket

sound/usb

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

• common.h

Detected Declarations

• struct control_runtime

Annotated Snippet

struct control_runtime {
	int (*update_streaming)(struct control_runtime *rt);
	int (*set_rate)(struct control_runtime *rt, int rate);
	int (*set_channels)(struct control_runtime *rt, int n_analog_out,
		int n_analog_in, bool spdif_out, bool spdif_in);

	struct sfire_chip *chip;

	struct snd_kcontrol *element[CONTROL_MAX_ELEMENTS];
	bool opt_coax_switch;
	bool line_phono_switch;
	bool digital_thru_switch;
	bool usb_streaming;
	u8 output_vol[6];
	u8 ovol_updated;
	u8 output_mute;
	s8 input_vol[2];
	u8 ivol_updated;
};

int usb6fire_control_init(struct sfire_chip *chip);
void usb6fire_control_abort(struct sfire_chip *chip);
void usb6fire_control_destroy(struct sfire_chip *chip);
#endif /* USB6FIRE_CONTROL_H */

Annotation

• Immediate include surface: `common.h`.
• Detected declarations: `struct control_runtime`.
• Atlas domain: Driver Families / sound/usb.
• 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.