// SPDX-License-Identifier: GPL-2.0 /* * ConfigFS support * * Copyright (C) 2026, Intel Corporation * Author: Mika Westerberg <mika.westerberg@linux.intel.com> */ #include <linux/configfs.h> #include <linux/export.h> #include "tb.h" static const struct config_item_type tb_root_group_type = { .ct_owner = THIS_MODULE, }; static struct configfs_subsystem tb_configfs = { .su_group = { .cg_item = { .ci_namebuf = "thunderbolt", .ci_type = &tb_root_group_type, }, }, }; /** * tb_configfs_register_group() - Register Thunderbolt ConfigFS group * @group: Group to register. * * Registers the new @group under Thunderbolt subsystem ConfigFS. * * Return: 0% in case of success, negative errno otherwise. */ int tb_configfs_register_group(struct config_group *group) { return configfs_register_group(&tb_configfs.su_group, group); } EXPORT_SYMBOL_GPL(tb_configfs_register_group); /** * tb_configfs_unregister_group() - Unregister previously registered group * @group: Group to unregister. */ void tb_configfs_unregister_group(struct config_group *group) { configfs_unregister_group(group); } EXPORT_SYMBOL_GPL(tb_configfs_unregister_group); int tb_configfs_init(void) { config_group_init(&tb_configfs.su_group); mutex_init(&tb_configfs.su_mutex); return configfs_register_subsystem(&tb_configfs); } void tb_configfs_exit(void) { configfs_unregister_subsystem(&tb_configfs); }