drivers/dio/dio-driver.c

Source file repositories/reference/linux-study-clean/drivers/dio/dio-driver.c

File Facts

System
Linux kernel
Corpus path
drivers/dio/dio-driver.c
Extension
.c
Size
3503 bytes
Lines
143
Domain
Driver Families
Bucket
drivers/dio
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.

Dependency Surface

Detected Declarations

Annotated Snippet

static int dio_bus_match(struct device *dev, const struct device_driver *drv)
{
	struct dio_dev *d = to_dio_dev(dev);
	const struct dio_driver *dio_drv = to_dio_driver(drv);
	const struct dio_device_id *ids = dio_drv->id_table;

	if (!ids)
		return 0;

	return dio_match_device(ids, d) ? 1 : 0;
}


const struct bus_type dio_bus_type = {
	.name	= "dio",
	.match	= dio_bus_match,
	.probe	= dio_device_probe,
};


static int __init dio_driver_init(void)
{
	return bus_register(&dio_bus_type);
}

postcore_initcall(dio_driver_init);

EXPORT_SYMBOL(dio_register_driver);
EXPORT_SYMBOL(dio_unregister_driver);
EXPORT_SYMBOL(dio_bus_type);

Annotation

Implementation Notes