drivers/mtd/maps/dc21285.c

File Facts

System

Linux kernel

Corpus path

drivers/mtd/maps/dc21285.c

Extension

.c

Size

5547 bytes

Lines

232

Domain

Driver Families

Bucket

drivers/mtd

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/module.h
• linux/types.h
• linux/kernel.h
• linux/init.h
• linux/delay.h
• linux/slab.h
• linux/mtd/mtd.h
• linux/mtd/map.h
• linux/mtd/partitions.h
• asm/io.h
• asm/hardware/dec21285.h
• asm/mach-types.h

Detected Declarations

• function nw_en_write
• function dc21285_read8
• function dc21285_read16
• function dc21285_read32
• function dc21285_copy_from
• function dc21285_write8
• function dc21285_write16
• function dc21285_write32
• function dc21285_copy_to_32
• function dc21285_copy_to_16
• function dc21285_copy_to_8
• function init_dc21285
• function cleanup_dc21285
• module init init_dc21285

Annotated Snippet

module_init(init_dc21285);
module_exit(cleanup_dc21285);


MODULE_LICENSE("GPL");
MODULE_AUTHOR("Nicolas Pitre <nico@fluxnic.net>");
MODULE_DESCRIPTION("MTD map driver for DC21285 boards");

Annotation

• Immediate include surface: `linux/module.h`, `linux/types.h`, `linux/kernel.h`, `linux/init.h`, `linux/delay.h`, `linux/slab.h`, `linux/mtd/mtd.h`, `linux/mtd/map.h`.
• Detected declarations: `function nw_en_write`, `function dc21285_read8`, `function dc21285_read16`, `function dc21285_read32`, `function dc21285_copy_from`, `function dc21285_write8`, `function dc21285_write16`, `function dc21285_write32`, `function dc21285_copy_to_32`, `function dc21285_copy_to_16`.
• Atlas domain: Driver Families / drivers/mtd.
• 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.