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*参照元 [#zdbeb0f1] #backlinks *説明 [#gac235d5] -パス: [[linux-4.4.1/drivers/base/core.c]] -FIXME: これは何？ --説明 **引数 [#m9d40c01] -struct class *class -- --[[linux-4.4.1/class]] -struct device *parent -- --[[linux-4.4.1/device]] -dev_t devt -- --[[linux-4.4.1/dev_t]] -void *drvdata -- -const char *fmt -- -... -- **返り値 [#ac2b8955] -struct device * -- --[[linux-4.4.1/device]] **参考 [#he9547f3] *実装 [#hca74672] /** * device_create - creates a device and registers it with sysfs * @class: pointer to the struct class that this device should be registered to * @parent: pointer to the parent struct device of this new device, if any * @devt: the dev_t for the char device to be added * @drvdata: the data to be added to the device for callbacks * @fmt: string for the device's name * * This function can be used by char device classes. A struct device * will be created in sysfs, registered to the specified class. * * A "dev" file will be created, showing the dev_t for the device, if * the dev_t is not 0,0. * If a pointer to a parent struct device is passed in, the newly created * struct device will be a child of that device in sysfs. * The pointer to the struct device will be returned from the call. * Any further sysfs files that might be required can be created using this * pointer. * * Returns &struct device pointer on success, or ERR_PTR() on error. * * Note: the struct class passed to this function must have previously * been created with a call to class_create(). */ struct device *device_create(struct class *class, struct device *parent, dev_t devt, void *drvdata, const char *fmt, ...) { va_list vargs; struct device *dev; - --[[linux-4.4.1/va_list]] --[[linux-4.4.1/device]] va_start(vargs, fmt); dev = device_create_vargs(class, parent, devt, drvdata, fmt, vargs); va_end(vargs); - --[[linux-4.4.1/va_start()]] --[[linux-4.4.1/device_create_vargs()]] --[[linux-4.4.1/va_end()]] return dev; } EXPORT_SYMBOL_GPL(device_create); - --[[linux-4.4.1/EXPORT_SYMBOL_GPL()]] *コメント [#w6c635a9]
