drivers/comedi/comedi_pcmcia.c

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

File Facts

System
Linux kernel
Corpus path
drivers/comedi/comedi_pcmcia.c
Extension
.c
Size
6614 bytes
Lines
198
Domain
Driver Families
Bucket
drivers/comedi
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.

Dependency Surface

Detected Declarations

Annotated Snippet

* This function is used for the module_init() of PCMCIA COMEDI driver modules
 * to register the COMEDI driver and the PCMCIA driver.  Do not call it
 * directly, use the module_comedi_pcmcia_driver() helper macro instead.
 *
 * Return: 0 on success, or a negative error number on failure.
 */
int comedi_pcmcia_driver_register(struct comedi_driver *comedi_driver,
				  struct pcmcia_driver *pcmcia_driver)
{
	int ret;

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

	ret = pcmcia_register_driver(pcmcia_driver);
	if (ret < 0) {
		comedi_driver_unregister(comedi_driver);
		return ret;
	}

	return 0;
}
EXPORT_SYMBOL_GPL(comedi_pcmcia_driver_register);

/**
 * comedi_pcmcia_driver_unregister() - Unregister a PCMCIA COMEDI driver
 * @comedi_driver: COMEDI driver to be registered.
 * @pcmcia_driver: PCMCIA driver to be registered.
 *
 * This function is called from the module_exit() of PCMCIA COMEDI driver
 * modules to unregister the PCMCIA driver and the COMEDI driver.  Do not call
 * it directly, use the module_comedi_pcmcia_driver() helper macro instead.
 */
void comedi_pcmcia_driver_unregister(struct comedi_driver *comedi_driver,
				     struct pcmcia_driver *pcmcia_driver)
{
	pcmcia_unregister_driver(pcmcia_driver);
	comedi_driver_unregister(comedi_driver);
}
EXPORT_SYMBOL_GPL(comedi_pcmcia_driver_unregister);

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

Annotation

Implementation Notes