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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970/* SPDX-License-Identifier: GPL-2.0-only *//* * Copyright (c) 2025 Greg Kroah-Hartman <gregkh@linuxfoundation.org> * Copyright (c) 2025 The Linux Foundation * * A "simple" faux bus that allows devices to be created and added * automatically to it. This is to be used whenever you need to create a * device that is not associated with any "real" system resources, and do * not want to have to deal with a bus/driver binding logic. It is * intended to be very simple, with only a create and a destroy function * available. */#ifndef _FAUX_DEVICE_H_#define _FAUX_DEVICE_H_
#include <linux/container_of.h>#include <linux/device.h>
/** * struct faux_device - a "faux" device * @dev: internal struct device of the object * * A simple faux device that can be created/destroyed. To be used when a * driver only needs to have a device to "hang" something off. This can be * used for downloading firmware or other basic tasks. Use this instead of * a struct platform_device if the device has no resources assigned to * it at all. */struct faux_device { struct device dev;};#define to_faux_device(x) container_of_const((x), struct faux_device, dev)
/** * struct faux_device_ops - a set of callbacks for a struct faux_device * @probe: called when a faux device is probed by the driver core * before the device is fully bound to the internal faux bus * code. If probe succeeds, return 0, otherwise return a * negative error number to stop the probe sequence from * succeeding. * @remove: called when a faux device is removed from the system * * Both @probe and @remove are optional, if not needed, set to NULL. */struct faux_device_ops { int (*probe)(struct faux_device *faux_dev); void (*remove)(struct faux_device *faux_dev);};
struct faux_device *faux_device_create(const char *name, struct device *parent, const struct faux_device_ops *faux_ops);struct faux_device *faux_device_create_with_groups(const char *name, struct device *parent, const struct faux_device_ops *faux_ops, const struct attribute_group **groups);void faux_device_destroy(struct faux_device *faux_dev);
static inline void *faux_device_get_drvdata(const struct faux_device *faux_dev){ return dev_get_drvdata(&faux_dev->dev);}
static inline void faux_device_set_drvdata(struct faux_device *faux_dev, void *data){ dev_set_drvdata(&faux_dev->dev, data);}
#endif /* _FAUX_DEVICE_H_ */