1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright 2015-2016 Google Inc.
8 #include <linux/string.h>
9 #include <linux/sysfs.h>
11 #include "audio_manager.h"
12 #include "audio_manager_private.h"
14 static ssize_t manager_sysfs_add_store(struct kobject *kobj,
15 struct kobj_attribute *attr,
16 const char *buf, size_t count)
18 struct gb_audio_manager_module_descriptor desc = { {0} };
21 "name=%" GB_AUDIO_MANAGER_MODULE_NAME_LEN_SSCANF
22 "s vid=%d pid=%d intf_id=%d i/p devices=0x%X o/p devices=0x%X",
23 desc.name, &desc.vid, &desc.pid, &desc.intf_id,
24 &desc.ip_devices, &desc.op_devices);
29 num = gb_audio_manager_add(&desc);
36 static struct kobj_attribute manager_add_attribute =
37 __ATTR(add, 0664, NULL, manager_sysfs_add_store);
39 static ssize_t manager_sysfs_remove_store(struct kobject *kobj,
40 struct kobj_attribute *attr,
41 const char *buf, size_t count)
45 int num = kstrtoint(buf, 10, &id);
50 num = gb_audio_manager_remove(id);
57 static struct kobj_attribute manager_remove_attribute =
58 __ATTR(remove, 0664, NULL, manager_sysfs_remove_store);
60 static ssize_t manager_sysfs_dump_store(struct kobject *kobj,
61 struct kobj_attribute *attr,
62 const char *buf, size_t count)
66 int num = kstrtoint(buf, 10, &id);
69 num = gb_audio_manager_dump_module(id);
72 } else if (!strncmp("all", buf, 3)) {
73 gb_audio_manager_dump_all();
81 static struct kobj_attribute manager_dump_attribute =
82 __ATTR(dump, 0664, NULL, manager_sysfs_dump_store);
84 static void manager_sysfs_init_attribute(struct kobject *kobj,
85 struct kobj_attribute *kattr)
89 err = sysfs_create_file(kobj, &kattr->attr);
91 pr_warn("creating the sysfs entry for %s failed: %d\n",
92 kattr->attr.name, err);
96 void gb_audio_manager_sysfs_init(struct kobject *kobj)
98 manager_sysfs_init_attribute(kobj, &manager_add_attribute);
99 manager_sysfs_init_attribute(kobj, &manager_remove_attribute);
100 manager_sysfs_init_attribute(kobj, &manager_dump_attribute);