drivers/media/dvb-frontends/lnbh24.h

File Facts

System

Linux kernel

Corpus path

drivers/media/dvb-frontends/lnbh24.h

Extension

.h

Size

1056 bytes

Lines

41

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

• linux/dvb/frontend.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef _LNBH24_H
#define _LNBH24_H

/* system register bits */
#define LNBH24_OLF	0x01
#define LNBH24_OTF	0x02
#define LNBH24_EN	0x04
#define LNBH24_VSEL	0x08
#define LNBH24_LLC	0x10
#define LNBH24_TEN	0x20
#define LNBH24_TTX	0x40
#define LNBH24_PCL	0x80

#include <linux/dvb/frontend.h>

#if IS_REACHABLE(CONFIG_DVB_LNBP21)
/* override_set and override_clear control which
   system register bits (above) to always set & clear */
extern struct dvb_frontend *lnbh24_attach(struct dvb_frontend *fe,
				struct i2c_adapter *i2c, u8 override_set,
				u8 override_clear, u8 i2c_addr);
#else
static inline struct dvb_frontend *lnbh24_attach(struct dvb_frontend *fe,
				struct i2c_adapter *i2c, u8 override_set,
				u8 override_clear, u8 i2c_addr)
{
	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
	return NULL;
}
#endif

#endif

Annotation

• Immediate include surface: `linux/dvb/frontend.h`.
• 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.