drivers/iio/industrialio-configfs.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * Industrial I/O configfs bits
0004  *
0005  * Copyright (c) 2015 Intel Corporation
0006  */
0007
0008 #include <linux/configfs.h>
0009 #include <linux/module.h>
0010 #include <linux/init.h>
0011 #include <linux/kmod.h>
0012 #include <linux/slab.h>
0013
0014 #include <linux/iio/iio.h>
0015 #include <linux/iio/configfs.h>
0016
0017 static const struct config_item_type iio_root_group_type = {
0018     .ct_owner       = THIS_MODULE,
0019 };
0020
0021 struct configfs_subsystem iio_configfs_subsys = {
0022     .su_group = {
0023         .cg_item = {
0024             .ci_namebuf = "iio",
0025             .ci_type = &iio_root_group_type,
0026         },
0027     },
0028     .su_mutex = __MUTEX_INITIALIZER(iio_configfs_subsys.su_mutex),
0029 };
0030 EXPORT_SYMBOL(iio_configfs_subsys);
0031
0032 static int __init iio_configfs_init(void)
0033 {
0034     config_group_init(&iio_configfs_subsys.su_group);
0035
0036     return configfs_register_subsystem(&iio_configfs_subsys);
0037 }
0038 module_init(iio_configfs_init);
0039
0040 static void __exit iio_configfs_exit(void)
0041 {
0042     configfs_unregister_subsystem(&iio_configfs_subsys);
0043 }
0044 module_exit(iio_configfs_exit);
0045
0046 MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com>");
0047 MODULE_DESCRIPTION("Industrial I/O configfs support");
0048 MODULE_LICENSE("GPL v2");