drivers/media/pci/cx25821/cx25821-biffuncs.h

File Facts

System

Linux kernel

Corpus path

drivers/media/pci/cx25821/cx25821-biffuncs.h

Extension

.h

Size

565 bytes

Lines

32

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.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• function Copyright
• function clearBitAtPos
• function setBitAtPos

Annotated Snippet

#ifndef _BITFUNCS_H
#define _BITFUNCS_H

#define SetBit(Bit)  (1 << Bit)

static inline u8 getBit(u32 sample, u8 index)
{
	return (u8) ((sample >> index) & 1);
}

static inline u32 clearBitAtPos(u32 value, u8 bit)
{
	return value & ~(1 << bit);
}

static inline u32 setBitAtPos(u32 sample, u8 bit)
{
	sample |= (1 << bit);
	return sample;

}

#endif

Annotation

• Detected declarations: `function Copyright`, `function clearBitAtPos`, `function setBitAtPos`.
• 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.