4 * Copyright 2015-2016 Google Inc.
6 * Released under the GPLv2 only.
9 #include <linux/string.h>
10 #include <linux/sysfs.h>
12 #include "audio_manager.h"
13 #include "audio_manager_private.h"
15 static ssize_t manager_sysfs_add_store(
16 struct kobject *kobj, struct kobj_attribute *attr,
17 const char *buf, size_t count)
19 struct gb_audio_manager_module_descriptor desc = { {0} };
22 "name=%" GB_AUDIO_MANAGER_MODULE_NAME_LEN_SSCANF "s "
23 "slot=%d vid=%d pid=%d cport=%d i/p devices=0x%X"
25 desc.name, &desc.slot, &desc.vid, &desc.pid,
26 &desc.cport, &desc.ip_devices, &desc.op_devices);
31 num = gb_audio_manager_add(&desc);
38 static struct kobj_attribute manager_add_attribute =
39 __ATTR(add, 0664, NULL, manager_sysfs_add_store);
41 static ssize_t manager_sysfs_remove_store(
42 struct kobject *kobj, struct kobj_attribute *attr,
43 const char *buf, size_t count)
47 int num = sscanf(buf, "%d", &id);
52 num = gb_audio_manager_remove(id);
59 static struct kobj_attribute manager_remove_attribute =
60 __ATTR(remove, 0664, NULL, manager_sysfs_remove_store);
62 static ssize_t manager_sysfs_dump_store(
63 struct kobject *kobj, struct kobj_attribute *attr,
64 const char *buf, size_t count)
68 int num = sscanf(buf, "%d", &id);
71 num = gb_audio_manager_dump_module(id);
74 } else if (!strncmp("all", buf, 3))
75 gb_audio_manager_dump_all();
82 static struct kobj_attribute manager_dump_attribute =
83 __ATTR(dump, 0664, NULL, manager_sysfs_dump_store);
85 static void manager_sysfs_init_attribute(
86 struct kobject *kobj, struct kobj_attribute *kattr)
90 err = sysfs_create_file(kobj, &kattr->attr);
92 pr_warn("creating the sysfs entry for %s failed: %d\n",
93 kattr->attr.name, err);
97 void gb_audio_manager_sysfs_init(struct kobject *kobj)
99 manager_sysfs_init_attribute(kobj, &manager_add_attribute);
100 manager_sysfs_init_attribute(kobj, &manager_remove_attribute);
101 manager_sysfs_init_attribute(kobj, &manager_dump_attribute);