Returns the PCI Express link width negotiated between the PCI Express host controller and the device. A value of -1 indicates that the device is not a PXI/PCI Express device. Common values include 1, 2, 4, 8, and 16.

注释

下表列出了该属性的特性

短名称 Link Width
数据类型 ci16.png
权限 只读
可用于运行引擎
可用于实时操作系统