drivers/video/fbdev/platinumfb.c

File Facts

System

Linux kernel

Corpus path

drivers/video/fbdev/platinumfb.c

Extension

.c

Size

19748 bytes

Lines

700

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• 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/mm.h
• linux/vmalloc.h
• linux/delay.h
• linux/interrupt.h
• linux/fb.h
• linux/init.h
• linux/nvram.h
• linux/of.h
• linux/of_address.h
• linux/platform_device.h
• macmodes.h
• platinumfb.h

Detected Declarations

• struct fb_info_platinum
• function platinumfb_check_var
• function platinumfb_set_par
• function platinumfb_blank
• function platinumfb_setcolreg
• function platinum_vram_reqd
• function set_platinum_clock
• function platinum_set_hardware
• function platinum_init_info
• function platinum_init_fb
• function read_platinum_sense
• function platinum_var_to_par
• function options
• function platinumfb_probe
• function resource_size
• function platinumfb_remove
• function platinumfb_init
• function platinumfb_exit
• module init platinumfb_init

Annotated Snippet

module_init(platinumfb_init);

#ifdef MODULE
module_exit(platinumfb_exit);
#endif

Annotation

• Immediate include surface: `linux/module.h`, `linux/kernel.h`, `linux/errno.h`, `linux/string.h`, `linux/mm.h`, `linux/vmalloc.h`, `linux/delay.h`, `linux/interrupt.h`.
• Detected declarations: `struct fb_info_platinum`, `function platinumfb_check_var`, `function platinumfb_set_par`, `function platinumfb_blank`, `function platinumfb_setcolreg`, `function platinum_vram_reqd`, `function set_platinum_clock`, `function platinum_set_hardware`, `function platinum_init_info`, `function platinum_init_fb`.
• Atlas domain: Driver Families / drivers/video.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.