drivers/media/dvb-frontends/sp2.h

File Facts

System

Linux kernel

Corpus path

drivers/media/dvb-frontends/sp2.h

Extension

.h

Size

1220 bytes

Lines

44

Domain

Driver Families

Bucket

drivers/media

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

• media/dvb_ca_en50221.h

Detected Declarations

• struct sp2_config

Annotated Snippet

struct sp2_config {
	/* dvb_adapter to attach the ci to */
	struct dvb_adapter *dvb_adap;

	/* function ci_control handles the device specific ci ops */
	void *ci_control;

	/* priv is passed back to function ci_control */
	void *priv;
};

extern int sp2_ci_read_attribute_mem(struct dvb_ca_en50221 *en50221,
					int slot, int addr);
extern int sp2_ci_write_attribute_mem(struct dvb_ca_en50221 *en50221,
					int slot, int addr, u8 data);
extern int sp2_ci_read_cam_control(struct dvb_ca_en50221 *en50221,
					int slot, u8 addr);
extern int sp2_ci_write_cam_control(struct dvb_ca_en50221 *en50221,
					int slot, u8 addr, u8 data);
extern int sp2_ci_slot_reset(struct dvb_ca_en50221 *en50221, int slot);
extern int sp2_ci_slot_shutdown(struct dvb_ca_en50221 *en50221, int slot);
extern int sp2_ci_slot_ts_enable(struct dvb_ca_en50221 *en50221, int slot);
extern int sp2_ci_poll_slot_status(struct dvb_ca_en50221 *en50221,
					int slot, int open);

#endif

Annotation

• Immediate include surface: `media/dvb_ca_en50221.h`.
• Detected declarations: `struct sp2_config`.
• Atlas domain: Driver Families / drivers/media.
• 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.