drivers/video/fbdev/acornfb.c

File Facts

System

Linux kernel

Corpus path

drivers/video/fbdev/acornfb.c

Extension

.c

Size

27581 bytes

Lines

1103

Domain

Driver Families

Bucket

drivers/video

Inferred role

Driver Families: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/module.h
• linux/kernel.h
• linux/errno.h
• linux/string.h
• linux/ctype.h
• linux/mm.h
• linux/init.h
• linux/fb.h
• linux/platform_device.h
• linux/dma-mapping.h
• linux/io.h
• linux/gfp.h
• mach/hardware.h
• asm/irq.h
• asm/mach-types.h
• acornfb.h
• mach/acornfb.h

Detected Declarations

• function acornfb_set_timing
• function acornfb_setcolreg
• function acornfb_adjust_timing
• function acornfb_validate_timing
• function acornfb_update_dma
• function acornfb_check_var
• function acornfb_set_par
• function acornfb_pan_display
• function acornfb_init_fbinfo
• function acornfb_parse_mon
• function acornfb_parse_montype
• function acornfb_parse_dram
• function acornfb_setup
• function acornfb_detect_monitortype
• function acornfb_probe
• function acornfb_init
• module init acornfb_init

Annotated Snippet

module_init(acornfb_init);

MODULE_AUTHOR("Russell King");
MODULE_DESCRIPTION("VIDC 1/1a/20 framebuffer driver");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/kernel.h`, `linux/errno.h`, `linux/string.h`, `linux/ctype.h`, `linux/mm.h`, `linux/init.h`, `linux/fb.h`.
• Detected declarations: `function acornfb_set_timing`, `function acornfb_setcolreg`, `function acornfb_adjust_timing`, `function acornfb_validate_timing`, `function acornfb_update_dma`, `function acornfb_check_var`, `function acornfb_set_par`, `function acornfb_pan_display`, `function acornfb_init_fbinfo`, `function acornfb_parse_mon`.
• Atlas domain: Driver Families / drivers/video.
• Implementation status: integration implementation candidate.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.