sound/usb/6fire/midi.h

File Facts

System

Linux kernel

Corpus path

sound/usb/6fire/midi.h

Extension

.h

Size

859 bytes

Lines

38

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 midi_runtime

Annotated Snippet

struct midi_runtime {
	struct sfire_chip *chip;
	struct snd_rawmidi *instance;

	struct snd_rawmidi_substream *in;
	char in_active;

	spinlock_t in_lock;
	spinlock_t out_lock;
	struct snd_rawmidi_substream *out;
	struct urb out_urb;
	u8 out_serial; /* serial number of out packet */
	u8 *out_buffer;
	int buffer_offset;

	void (*in_received)(struct midi_runtime *rt, u8 *data, int length);
};

int usb6fire_midi_init(struct sfire_chip *chip);
void usb6fire_midi_abort(struct sfire_chip *chip);
void usb6fire_midi_destroy(struct sfire_chip *chip);
#endif /* USB6FIRE_MIDI_H */

Annotation

• Immediate include surface: `common.h`.
• Detected declarations: `struct midi_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.