DBus 对象路径：在哪里可以找到它？

Question

我正在尝试实现 AVRCP 协议的一些功能。这里是文档：

http://git.kernel.org/cgit/bluetooth/bluez.git/tree/doc/media-api.txt

我不明白的是如何检索我的播放器的对象路径：

Object path [variable prefix]/{hci0,hci1,...}/dev_XX_XX_XX_XX_XX_XX/playerX

我不确定它是从某些 DBus 方法返回的还是我必须使用蓝牙地址和本地设备手动构建它。

Answer 1

I'm not sure if it is returned from some DBus methods or I have to manually build it using the bluetooth address and the local device.

前者。您（我假设的应用程序）不需要构建此对象路径，该路径将通过某些 DBus 方法return。

此处对象含义：

Object path [variable prefix]/{hci0,hci1,...}/dev_XX_XX_XX_XX_XX_XX/playerX

[variable prefix] was null basically.
{hci0,hci1,...} was which of your Bluetooth chip, basically it should be hci0.
/dev_XX_XX_XX_XX_XX_XX remote device mac address.
/playerX which player of your target.

object path的material不用太在意，其实就是一个字符串（按特定格式栈组合）

您可以参考：

Properties

      boolean Connected [readonly]

      object Player [readonly, optional]

          Addressed Player object path.

DBus 对象路径：在哪里可以找到它？

DBus object path: where to find it?

dbus

bluetooth

path

object

avrcp