drivers/video/fbdev/via/debug.h

File Facts

System

Linux kernel

Corpus path

drivers/video/fbdev/via/debug.h

Extension

.h

Size

592 bytes

Lines

30

Domain

Driver Families

Bucket

drivers/video

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

• linux/printk.h

Detected Declarations

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

Annotated Snippet

#ifndef __DEBUG_H__
#define __DEBUG_H__

#include <linux/printk.h>

#ifndef VIAFB_DEBUG
#define VIAFB_DEBUG 0
#endif

#if VIAFB_DEBUG
#define DEBUG_MSG(f, a...)   printk(f, ## a)
#else
#define DEBUG_MSG(f, a...)   no_printk(f, ## a)
#endif

#define VIAFB_WARN 0
#if VIAFB_WARN
#define WARN_MSG(f, a...)   printk(f, ## a)
#else
#define WARN_MSG(f, a...)   no_printk(f, ## a)
#endif

#endif /* __DEBUG_H__ */

Annotation

• Immediate include surface: `linux/printk.h`.
• Atlas domain: Driver Families / drivers/video.
• 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.