drivers/comedi/comedi_pci.c

Source file repositories/reference/linux-study-clean/drivers/comedi/comedi_pci.c

File Facts

System
Linux kernel
Corpus path
drivers/comedi/comedi_pci.c
Extension
.c
Size
6693 bytes
Lines
217
Domain
Driver Families
Bucket
drivers/comedi
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

struct pci_driver *pci_driver)
{
	int ret;

	ret = comedi_driver_register(comedi_driver);
	if (ret < 0)
		return ret;

	ret = pci_register_driver(pci_driver);
	if (ret < 0) {
		comedi_driver_unregister(comedi_driver);
		return ret;
	}

	return 0;
}
EXPORT_SYMBOL_GPL(comedi_pci_driver_register);

/**
 * comedi_pci_driver_unregister() - Unregister a PCI COMEDI driver
 * @comedi_driver: COMEDI driver to be unregistered.
 * @pci_driver: PCI driver to be unregistered.
 *
 * This function is called from the module_exit() of PCI COMEDI driver modules
 * to unregister the PCI driver and the COMEDI driver.  Do not call it
 * directly, use the module_comedi_pci_driver() helper macro instead.
 */
void comedi_pci_driver_unregister(struct comedi_driver *comedi_driver,
				  struct pci_driver *pci_driver)
{
	pci_unregister_driver(pci_driver);
	comedi_driver_unregister(comedi_driver);
}
EXPORT_SYMBOL_GPL(comedi_pci_driver_unregister);

MODULE_AUTHOR("https://www.comedi.org");
MODULE_DESCRIPTION("Comedi PCI interface module");
MODULE_LICENSE("GPL");

Annotation

Implementation Notes