restore lost packages from 0.2.3 + fix overwritten 0.2.4 files
- Restore 29 recipe symlinks (libdrm, qtbase, dbus, sddm, pipewire, etc.) - Restore 33 patches (KDE, libdrm, mesa, pipewire, sddm, wireplumber) - Restore 20+ local/scripts (audit, lint, test, build helpers) - Restore src/cook/scheduler.rs, status.rs, gnu-config/ - Restore scripts/patch-inclusion-gate.sh, run_mini1.sh, validate-collision-log.sh - Recover TLC source from HEAD (was overwritten by 0.2.3 checkout) - Recover 11 local/docs plans from HEAD (were overwritten) - Recover qt6-wayland-smoke symlink from HEAD - Fix MOTD: remove garbled ASCII art, use clean text - Update version: 0.2.0 -> 0.2.4 in os-release, motd, config - Reduce filesystem_size: 1536 -> 512 MiB - Add ABSOLUTE RULE to AGENTS.md: never delete/ignore packages - Reduce pcid scheme log verbosity: info -> debug
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// SPDX-License-Identifier: GPL-2.0
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/*
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* The class-specific portions of the driver model
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*
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* Copyright (c) 2001-2003 Patrick Mochel <mochel@osdl.org>
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* Copyright (c) 2004-2009 Greg Kroah-Hartman <gregkh@suse.de>
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* Copyright (c) 2008-2009 Novell Inc.
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* Copyright (c) 2012-2019 Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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* Copyright (c) 2012-2019 Linux Foundation
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*
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* See Documentation/driver-api/driver-model/ for more information.
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*/
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#ifndef _DEVICE_CLASS_H_
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#define _DEVICE_CLASS_H_
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#include <linux/kobject.h>
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#include <linux/klist.h>
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#include <linux/pm.h>
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#include <linux/device/bus.h>
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struct device;
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struct fwnode_handle;
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/**
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* struct class - device classes
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* @name: Name of the class.
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* @class_groups: Default attributes of this class.
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* @dev_groups: Default attributes of the devices that belong to the class.
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* @dev_uevent: Called when a device is added, removed from this class, or a
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* few other things that generate uevents to add the environment
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* variables.
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* @devnode: Callback to provide the devtmpfs.
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* @class_release: Called to release this class.
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* @dev_release: Called to release the device.
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* @shutdown_pre: Called at shut-down time before driver shutdown.
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* @ns_type: Callbacks so sysfs can detemine namespaces.
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* @namespace: Namespace of the device belongs to this class.
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* @get_ownership: Allows class to specify uid/gid of the sysfs directories
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* for the devices belonging to the class. Usually tied to
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* device's namespace.
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* @pm: The default device power management operations of this class.
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*
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* A class is a higher-level view of a device that abstracts out low-level
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* implementation details. Drivers may see a SCSI disk or an ATA disk, but,
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* at the class level, they are all simply disks. Classes allow user space
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* to work with devices based on what they do, rather than how they are
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* connected or how they work.
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*/
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struct class {
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const char *name;
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const struct attribute_group *const *class_groups;
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const struct attribute_group *const *dev_groups;
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int (*dev_uevent)(const struct device *dev, struct kobj_uevent_env *env);
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char *(*devnode)(const struct device *dev, umode_t *mode);
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void (*class_release)(const struct class *class);
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void (*dev_release)(struct device *dev);
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int (*shutdown_pre)(struct device *dev);
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const struct kobj_ns_type_operations *ns_type;
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const struct ns_common *(*namespace)(const struct device *dev);
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void (*get_ownership)(const struct device *dev, kuid_t *uid, kgid_t *gid);
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const struct dev_pm_ops *pm;
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};
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struct class_dev_iter {
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struct klist_iter ki;
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const struct device_type *type;
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struct subsys_private *sp;
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};
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int __must_check class_register(const struct class *class);
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void class_unregister(const struct class *class);
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bool class_is_registered(const struct class *class);
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struct class_compat;
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struct class_compat *class_compat_register(const char *name);
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void class_compat_unregister(struct class_compat *cls);
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int class_compat_create_link(struct class_compat *cls, struct device *dev);
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void class_compat_remove_link(struct class_compat *cls, struct device *dev);
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void class_dev_iter_init(struct class_dev_iter *iter, const struct class *class,
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const struct device *start, const struct device_type *type);
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struct device *class_dev_iter_next(struct class_dev_iter *iter);
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void class_dev_iter_exit(struct class_dev_iter *iter);
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int class_for_each_device(const struct class *class, const struct device *start,
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void *data, device_iter_t fn);
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struct device *class_find_device(const struct class *class, const struct device *start,
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const void *data, device_match_t match);
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/**
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* class_find_device_by_name - device iterator for locating a particular device
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* of a specific name.
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* @class: class type
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* @name: name of the device to match
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*/
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static inline struct device *class_find_device_by_name(const struct class *class,
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const char *name)
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{
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return class_find_device(class, NULL, name, device_match_name);
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}
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/**
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* class_find_device_by_of_node : device iterator for locating a particular device
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* matching the of_node.
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* @class: class type
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* @np: of_node of the device to match.
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*/
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static inline struct device *class_find_device_by_of_node(const struct class *class,
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const struct device_node *np)
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{
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return class_find_device(class, NULL, np, device_match_of_node);
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}
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/**
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* class_find_device_by_fwnode : device iterator for locating a particular device
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* matching the fwnode.
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* @class: class type
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* @fwnode: fwnode of the device to match.
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*/
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static inline struct device *class_find_device_by_fwnode(const struct class *class,
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const struct fwnode_handle *fwnode)
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{
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return class_find_device(class, NULL, fwnode, device_match_fwnode);
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}
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/**
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* class_find_device_by_devt : device iterator for locating a particular device
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* matching the device type.
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* @class: class type
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* @devt: device type of the device to match.
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*/
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static inline struct device *class_find_device_by_devt(const struct class *class,
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dev_t devt)
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{
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return class_find_device(class, NULL, &devt, device_match_devt);
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}
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#ifdef CONFIG_ACPI
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struct acpi_device;
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/**
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* class_find_device_by_acpi_dev : device iterator for locating a particular
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* device matching the ACPI_COMPANION device.
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* @class: class type
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* @adev: ACPI_COMPANION device to match.
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*/
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static inline struct device *class_find_device_by_acpi_dev(const struct class *class,
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const struct acpi_device *adev)
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{
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return class_find_device(class, NULL, adev, device_match_acpi_dev);
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}
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#else
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static inline struct device *class_find_device_by_acpi_dev(const struct class *class,
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const void *adev)
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{
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return NULL;
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}
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#endif
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struct class_attribute {
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struct attribute attr;
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ssize_t (*show)(const struct class *class, const struct class_attribute *attr,
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char *buf);
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ssize_t (*store)(const struct class *class, const struct class_attribute *attr,
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const char *buf, size_t count);
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};
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#define CLASS_ATTR_RW(_name) \
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struct class_attribute class_attr_##_name = __ATTR_RW(_name)
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#define CLASS_ATTR_RO(_name) \
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struct class_attribute class_attr_##_name = __ATTR_RO(_name)
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#define CLASS_ATTR_WO(_name) \
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struct class_attribute class_attr_##_name = __ATTR_WO(_name)
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int __must_check class_create_file_ns(const struct class *class, const struct class_attribute *attr,
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const struct ns_common *ns);
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void class_remove_file_ns(const struct class *class, const struct class_attribute *attr,
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const struct ns_common *ns);
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static inline int __must_check class_create_file(const struct class *class,
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const struct class_attribute *attr)
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{
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return class_create_file_ns(class, attr, NULL);
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}
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static inline void class_remove_file(const struct class *class,
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const struct class_attribute *attr)
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{
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class_remove_file_ns(class, attr, NULL);
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}
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/* Simple class attribute that is just a static string */
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struct class_attribute_string {
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struct class_attribute attr;
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char *str;
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};
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/* Currently read-only only */
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#define _CLASS_ATTR_STRING(_name, _mode, _str) \
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{ __ATTR(_name, _mode, show_class_attr_string, NULL), _str }
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#define CLASS_ATTR_STRING(_name, _mode, _str) \
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struct class_attribute_string class_attr_##_name = \
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_CLASS_ATTR_STRING(_name, _mode, _str)
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ssize_t show_class_attr_string(const struct class *class, const struct class_attribute *attr,
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char *buf);
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struct class_interface {
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struct list_head node;
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const struct class *class;
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int (*add_dev) (struct device *dev);
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void (*remove_dev) (struct device *dev);
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};
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int __must_check class_interface_register(struct class_interface *);
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void class_interface_unregister(struct class_interface *);
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struct class * __must_check class_create(const char *name);
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void class_destroy(const struct class *cls);
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#endif /* _DEVICE_CLASS_H_ */
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