Lines Matching refs:dev
28 struct w1_master *dev;
34 dev = kzalloc(sizeof(struct w1_master) + sizeof(struct w1_bus_master), GFP_KERNEL);
35 if (!dev) {
42 dev->bus_master = (struct w1_bus_master *)(dev + 1);
44 dev->owner = THIS_MODULE;
45 dev->max_slave_count = slave_count;
46 dev->slave_count = 0;
47 dev->attempts = 0;
48 dev->initialized = 0;
49 dev->id = id;
50 dev->slave_ttl = slave_ttl;
51 dev->search_count = w1_search_count;
52 dev->enable_pullup = w1_enable_pullup;
56 atomic_set(&dev->refcnt, 1);
58 INIT_LIST_HEAD(&dev->slist);
59 INIT_LIST_HEAD(&dev->async_list);
60 mutex_init(&dev->mutex);
61 mutex_init(&dev->bus_mutex);
62 mutex_init(&dev->list_mutex);
64 memcpy(&dev->dev, device, sizeof(struct device));
65 dev_set_name(&dev->dev, "w1_bus_master%u", dev->id);
66 snprintf(dev->name, sizeof(dev->name), "w1_bus_master%u", dev->id);
67 dev->dev.init_name = dev->name;
69 dev->driver = driver;
71 dev->seq = 1;
73 err = device_register(&dev->dev);
76 put_device(&dev->dev);
77 dev = NULL;
80 return dev;
83 static void w1_free_dev(struct w1_master *dev)
85 device_unregister(&dev->dev);
94 struct w1_master *dev, *entry;
122 dev = w1_alloc_dev(id, w1_max_slave_count, w1_max_slave_ttl,
124 if (!dev) {
129 retval = w1_create_master_attributes(dev);
135 memcpy(dev->bus_master, master, sizeof(struct w1_bus_master));
137 dev->initialized = 1;
139 dev->thread = kthread_run(&w1_process, dev, "%s", dev->name);
140 if (IS_ERR(dev->thread)) {
141 retval = PTR_ERR(dev->thread);
142 dev_err(&dev->dev,
149 list_add(&dev->w1_master_entry, &w1_masters);
153 msg.id.mst.id = dev->id;
155 w1_netlink_send(dev, &msg);
161 set_bit(W1_ABORT_SEARCH, &dev->flags);
162 kthread_stop(dev->thread);
165 w1_destroy_master_attributes(dev);
167 w1_free_dev(dev);
173 void __w1_remove_master_device(struct w1_master *dev)
179 list_del(&dev->w1_master_entry);
182 set_bit(W1_ABORT_SEARCH, &dev->flags);
183 kthread_stop(dev->thread);
185 mutex_lock(&dev->mutex);
186 mutex_lock(&dev->list_mutex);
187 list_for_each_entry_safe(sl, sln, &dev->slist, w1_slave_entry) {
188 mutex_unlock(&dev->list_mutex);
190 mutex_lock(&dev->list_mutex);
192 w1_destroy_master_attributes(dev);
193 mutex_unlock(&dev->list_mutex);
194 mutex_unlock(&dev->mutex);
195 atomic_dec(&dev->refcnt);
197 while (atomic_read(&dev->refcnt)) {
198 dev_info(&dev->dev, "Waiting for %s to become free: refcnt=%d.\n",
199 dev->name, atomic_read(&dev->refcnt));
203 mutex_lock(&dev->list_mutex);
204 w1_process_callbacks(dev);
205 mutex_unlock(&dev->list_mutex);
207 mutex_lock(&dev->list_mutex);
208 w1_process_callbacks(dev);
209 mutex_unlock(&dev->list_mutex);
212 msg.id.mst.id = dev->id;
214 w1_netlink_send(dev, &msg);
216 w1_free_dev(dev);
225 struct w1_master *dev, *found = NULL;
227 list_for_each_entry(dev, &w1_masters, w1_master_entry) {
228 if (!dev->initialized)
231 if (dev->bus_master->data == bm->data) {
232 found = dev;