linux-4.4.1/driver_register()

参照元†

• linux-4.4.1/__platform_driver_register()

説明†

• パス: linux-4.4.1/drivers/base/driver.c

• FIXME: これは何？
  • 説明

引数†

• struct device_driver *drv
  • linux-4.4.1/device_driver

返り値†

• int

参考†

実装†

/**
 * driver_register - register driver with bus
 * @drv: driver to register
 *
 * We pass off most of the work to the bus_add_driver() call,
 * since most of the things we have to do deal with the bus
 * structures.
 */
int driver_register(struct device_driver *drv)
{
        int ret;
        struct device_driver *other;

        BUG_ON(!drv->bus->p);

• • linux-4.4.1/BUG_ON()

        if ((drv->bus->probe && drv->probe) ||
            (drv->bus->remove && drv->remove) ||
            (drv->bus->shutdown && drv->shutdown))
                printk(KERN_WARNING "Driver '%s' needs updating - please use "
                        "bus_type methods\n", drv->name);

• drv->bus は struct bus_type * 型
  • linux-4.4.1/bus_type
  • linux-4.4.1/printk()

        other = driver_find(drv->name, drv->bus);
        if (other) {
                printk(KERN_ERR "Error: Driver '%s' is already registered, "
                        "aborting...\n", drv->name);
                return -EBUSY;
        }

• • linux-4.4.1/driver_find()

        ret = bus_add_driver(drv);
        if (ret)
                return ret;

• • linux-4.4.1/bus_add_driver()

        ret = driver_add_groups(drv, drv->groups);
        if (ret) {
                bus_remove_driver(drv);
                return ret;
        }
        kobject_uevent(&drv->p->kobj, KOBJ_ADD);

• • linux-4.4.1/driver_add_groups()
  • linux-4.4.1/bus_remove_driver()
  • linux-4.4.1/kobject_uevent()

        return ret;
}
EXPORT_SYMBOL_GPL(driver_register);

• • linux-4.4.1/EXPORT_SYMBOL_GPL()

コメント†

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• katsuhiro

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