drivers/misc/cb710/core.c

File Facts

System

Linux kernel

Corpus path

drivers/misc/cb710/core.c

Extension

.c

Size

7795 bytes

Lines

328

Domain

Driver Families

Bucket

drivers/misc

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern 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.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• 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/kernel.h
• linux/module.h
• linux/pci.h
• linux/spinlock.h
• linux/idr.h
• linux/cb710.h
• linux/gfp.h

Detected Declarations

• function cb710_pci_update_config_reg
• function cb710_pci_configure
• function cb710_irq_handler
• function cb710_release_slot
• function cb710_register_slot
• function cb710_unregister_slot
• function cb710_set_irq_handler
• function cb710_suspend
• function cb710_resume
• function cb710_probe
• function cb710_remove_one
• function cb710_init_module
• function cb710_cleanup_module
• module init cb710_init_module
• export cb710_pci_update_config_reg
• export cb710_set_irq_handler

Annotated Snippet

static struct pci_driver cb710_driver = {
	.name = KBUILD_MODNAME,
	.id_table = cb710_pci_tbl,
	.probe = cb710_probe,
	.remove = cb710_remove_one,
	.driver.pm = &cb710_pm_ops,
};

static int __init cb710_init_module(void)
{
	return pci_register_driver(&cb710_driver);
}

static void __exit cb710_cleanup_module(void)
{
	pci_unregister_driver(&cb710_driver);
	ida_destroy(&cb710_ida);
}

module_init(cb710_init_module);
module_exit(cb710_cleanup_module);

MODULE_AUTHOR("Michał Mirosław <mirq-linux@rere.qmqm.pl>");
MODULE_DESCRIPTION("ENE CB710 memory card reader driver");
MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(pci, cb710_pci_tbl);

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/module.h`, `linux/pci.h`, `linux/spinlock.h`, `linux/idr.h`, `linux/cb710.h`, `linux/gfp.h`.
• Detected declarations: `function cb710_pci_update_config_reg`, `function cb710_pci_configure`, `function cb710_irq_handler`, `function cb710_release_slot`, `function cb710_register_slot`, `function cb710_unregister_slot`, `function cb710_set_irq_handler`, `function cb710_suspend`, `function cb710_resume`, `function cb710_probe`.
• Atlas domain: Driver Families / drivers/misc.
• Implementation status: pattern implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• 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.