drivers/nfc/st95hf/spi.h

File Facts

System

Linux kernel

Corpus path

drivers/nfc/st95hf/spi.h

Extension

.h

Size

1493 bytes

Lines

54

Domain

Driver Families

Bucket

drivers/nfc

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

• linux/spi/spi.h

Detected Declarations

• struct st95hf_spi_context
• enum req_type

Annotated Snippet

struct st95hf_spi_context {
	bool req_issync;
	struct spi_device *spidev;
	struct completion done;
	struct mutex spi_lock;
};

/* flag to differentiate synchronous & asynchronous spi request */
enum req_type {
	SYNC,
	ASYNC,
};

int st95hf_spi_send(struct st95hf_spi_context *spicontext,
		    unsigned char *buffertx,
		    int datalen,
		    enum req_type reqtype);

int st95hf_spi_recv_response(struct st95hf_spi_context *spicontext,
			     unsigned char *receivebuff);

int st95hf_spi_recv_echo_res(struct st95hf_spi_context *spicontext,
			     unsigned char *receivebuff);

#endif

Annotation

• Immediate include surface: `linux/spi/spi.h`.
• Detected declarations: `struct st95hf_spi_context`, `enum req_type`.
• Atlas domain: Driver Families / drivers/nfc.
• 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.