drivers/mtd/devices/slram.c

File Facts

System

Linux kernel

Corpus path

drivers/mtd/devices/slram.c

Extension

.c

Size

8533 bytes

Lines

355

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.
• 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/uaccess.h
• linux/types.h
• linux/kernel.h
• linux/ptrace.h
• linux/slab.h
• linux/string.h
• linux/timer.h
• linux/major.h
• linux/fs.h
• linux/ioctl.h
• linux/init.h
• linux/io.h
• linux/mtd/mtd.h

Detected Declarations

• function slram_erase
• function slram_point
• function slram_unpoint
• function slram_read
• function slram_write
• function register_device
• function unregister_devices
• function handle_unit
• function parse_cmdline
• function mtd_slram_setup
• function init_slram
• function cleanup_slram
• module init init_slram

Annotated Snippet

module_init(init_slram);
module_exit(cleanup_slram);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Jochen Schaeuble <psionic@psionic.de>");
MODULE_DESCRIPTION("MTD driver for uncached system RAM");

Annotation

• Immediate include surface: `linux/module.h`, `linux/uaccess.h`, `linux/types.h`, `linux/kernel.h`, `linux/ptrace.h`, `linux/slab.h`, `linux/string.h`, `linux/timer.h`.
• Detected declarations: `function slram_erase`, `function slram_point`, `function slram_unpoint`, `function slram_read`, `function slram_write`, `function register_device`, `function unregister_devices`, `function handle_unit`, `function parse_cmdline`, `function mtd_slram_setup`.
• Atlas domain: Driver Families / drivers/mtd.
• Implementation status: integration 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.