Commit 0f8a0013 authored by Hsin-chen Chuang's avatar Hsin-chen Chuang Committed by Luiz Augusto von Dentz
Browse files

Bluetooth: Allow reset via sysfs 



Allow sysfs to trigger hdev reset. This is required to recover devices
that are not responsive from userspace.

Signed-off-by: default avatarHsin-chen Chuang <chharry@chromium.org>
Signed-off-by: default avatarLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
parent f07d4780

net/bluetooth/hci_sysfs.c

+19 −0
Original line number Diff line number Diff line
@@ -90,9 +90,28 @@ static void bt_host_release(struct device *dev) 
	module_put(THIS_MODULE);

}



static ssize_t reset_store(struct device *dev, struct device_attribute *attr,

			   const char *buf, size_t count)

{

	struct hci_dev *hdev = to_hci_dev(dev);



	if (hdev->reset)

		hdev->reset(hdev);



	return count;

}

static DEVICE_ATTR_WO(reset);



static struct attribute *bt_host_attrs[] = {

	&dev_attr_reset.attr,

	NULL,

};

ATTRIBUTE_GROUPS(bt_host);



static const struct device_type bt_host = {

	.name    = "host",

	.release = bt_host_release,

	.groups = bt_host_groups,

};



void hci_init_sysfs(struct hci_dev *hdev)