+void hci_conn_add_sysfs(struct hci_conn *conn)
+{
+ BT_DBG("conn %p", conn);
+
+ queue_work(bt_workq, &conn->work_add);
+}
+
+void hci_conn_del_sysfs(struct hci_conn *conn)
+{
+ BT_DBG("conn %p", conn);
+
+ queue_work(bt_workq, &conn->work_del);
+}
+
+static inline char *host_bustostr(int bus)
+{
+ switch (bus) {
+ case HCI_VIRTUAL:
+ return "VIRTUAL";
+ case HCI_USB:
+ return "USB";
+ case HCI_PCCARD:
+ return "PCCARD";
+ case HCI_UART:
+ return "UART";
+ case HCI_RS232:
+ return "RS232";
+ case HCI_PCI:
+ return "PCI";
+ case HCI_SDIO:
+ return "SDIO";
+ default:
+ return "UNKNOWN";
+ }
+}
+
+static inline char *host_typetostr(int type)
+{
+ switch (type) {
+ case HCI_BREDR:
+ return "BR/EDR";
+ case HCI_80211:
+ return "802.11";
+ default:
+ return "UNKNOWN";
+ }
+}
+
+static ssize_t show_bus(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct hci_dev *hdev = dev_get_drvdata(dev);
+ return sprintf(buf, "%s\n", host_bustostr(hdev->bus));
+}
+
+static ssize_t show_type(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct hci_dev *hdev = dev_get_drvdata(dev);
+ return sprintf(buf, "%s\n", host_typetostr(hdev->dev_type));
+}
+
+static ssize_t show_name(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct hci_dev *hdev = dev_get_drvdata(dev);
+ char name[249];
+ int i;
+
+ for (i = 0; i < 248; i++)
+ name[i] = hdev->dev_name[i];
+
+ name[248] = '\0';
+ return sprintf(buf, "%s\n", name);
+}
+
+static ssize_t show_class(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct hci_dev *hdev = dev_get_drvdata(dev);
+ return sprintf(buf, "0x%.2x%.2x%.2x\n",
+ hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
+}
+
+static ssize_t show_address(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct hci_dev *hdev = dev_get_drvdata(dev);
+ bdaddr_t bdaddr;
+ baswap(&bdaddr, &hdev->bdaddr);
+ return sprintf(buf, "%s\n", batostr(&bdaddr));
+}
+
+static ssize_t show_features(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct hci_dev *hdev = dev_get_drvdata(dev);
+
+ return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
+ hdev->features[0], hdev->features[1],
+ hdev->features[2], hdev->features[3],
+ hdev->features[4], hdev->features[5],
+ hdev->features[6], hdev->features[7]);
+}
+
+static ssize_t show_manufacturer(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct hci_dev *hdev = dev_get_drvdata(dev);
+ return sprintf(buf, "%d\n", hdev->manufacturer);
+}
+
+static ssize_t show_hci_version(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct hci_dev *hdev = dev_get_drvdata(dev);
+ return sprintf(buf, "%d\n", hdev->hci_ver);
+}
+
+static ssize_t show_hci_revision(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct hci_dev *hdev = dev_get_drvdata(dev);
+ return sprintf(buf, "%d\n", hdev->hci_rev);
+}
+
+static ssize_t show_idle_timeout(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct hci_dev *hdev = dev_get_drvdata(dev);
+ return sprintf(buf, "%d\n", hdev->idle_timeout);
+}
+
+static ssize_t store_idle_timeout(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct hci_dev *hdev = dev_get_drvdata(dev);
+ char *ptr;
+ __u32 val;
+
+ val = simple_strtoul(buf, &ptr, 10);
+ if (ptr == buf)
+ return -EINVAL;
+
+ if (val != 0 && (val < 500 || val > 3600000))
+ return -EINVAL;
+
+ hdev->idle_timeout = val;
+
+ return count;
+}
+
+static ssize_t show_sniff_max_interval(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct hci_dev *hdev = dev_get_drvdata(dev);
+ return sprintf(buf, "%d\n", hdev->sniff_max_interval);
+}
+
+static ssize_t store_sniff_max_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct hci_dev *hdev = dev_get_drvdata(dev);
+ char *ptr;
+ __u16 val;
+
+ val = simple_strtoul(buf, &ptr, 10);
+ if (ptr == buf)
+ return -EINVAL;
+
+ if (val < 0x0002 || val > 0xFFFE || val % 2)
+ return -EINVAL;
+
+ if (val < hdev->sniff_min_interval)
+ return -EINVAL;
+
+ hdev->sniff_max_interval = val;
+
+ return count;
+}
+
+static ssize_t show_sniff_min_interval(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct hci_dev *hdev = dev_get_drvdata(dev);
+ return sprintf(buf, "%d\n", hdev->sniff_min_interval);
+}
+
+static ssize_t store_sniff_min_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct hci_dev *hdev = dev_get_drvdata(dev);
+ char *ptr;
+ __u16 val;
+
+ val = simple_strtoul(buf, &ptr, 10);
+ if (ptr == buf)
+ return -EINVAL;
+
+ if (val < 0x0002 || val > 0xFFFE || val % 2)
+ return -EINVAL;
+
+ if (val > hdev->sniff_max_interval)
+ return -EINVAL;
+
+ hdev->sniff_min_interval = val;
+
+ return count;
+}
+
+static DEVICE_ATTR(bus, S_IRUGO, show_bus, NULL);
+static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+static DEVICE_ATTR(class, S_IRUGO, show_class, NULL);
+static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
+static DEVICE_ATTR(features, S_IRUGO, show_features, NULL);
+static DEVICE_ATTR(manufacturer, S_IRUGO, show_manufacturer, NULL);
+static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL);
+static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL);
+
+static DEVICE_ATTR(idle_timeout, S_IRUGO | S_IWUSR,
+ show_idle_timeout, store_idle_timeout);
+static DEVICE_ATTR(sniff_max_interval, S_IRUGO | S_IWUSR,
+ show_sniff_max_interval, store_sniff_max_interval);
+static DEVICE_ATTR(sniff_min_interval, S_IRUGO | S_IWUSR,
+ show_sniff_min_interval, store_sniff_min_interval);
+
+static struct attribute *bt_host_attrs[] = {
+ &dev_attr_bus.attr,
+ &dev_attr_type.attr,
+ &dev_attr_name.attr,
+ &dev_attr_class.attr,
+ &dev_attr_address.attr,
+ &dev_attr_features.attr,
+ &dev_attr_manufacturer.attr,
+ &dev_attr_hci_version.attr,
+ &dev_attr_hci_revision.attr,
+ &dev_attr_idle_timeout.attr,
+ &dev_attr_sniff_max_interval.attr,
+ &dev_attr_sniff_min_interval.attr,
+ NULL
+};
+
+static struct attribute_group bt_host_group = {
+ .attrs = bt_host_attrs,
+};
+
+static const struct attribute_group *bt_host_groups[] = {
+ &bt_host_group,