Windows CE：USB 开机时唤醒设备
我有一个运行 Windows CE 5.0 的导航设备 (Wayteq x850)。它充当另一个设备的 USB 客户端。当建立 USB 连接或来自 USB 电源时，是否有一种（简单）方法可以将 USB 客户端从挂起状态唤醒？
感谢您的任何提示。 Microsoft 的 MSDN 页面 ( http://msdn.microsoft.com/en-us/library /ms836788.aspx , http://msdn.microsoft.com/en-us/library/ms894047.aspx ）非常擅长声称很多东西都有效并且受到支持，但没有在让他们工作的所有方法。
I've got a navigation device (Wayteq x850) that's running Windows CE 5.0. It serves as USB client to another device. Is there a (simple) way to wake up the USB client from Suspend when the USB connection is established, or when power comes from the USB?
Thanks for any kind of hint. Microsoft's MSDN pages ( http://msdn.microsoft.com/en-us/library/ms836788.aspx , http://msdn.microsoft.com/en-us/library/ms894047.aspx ) are very good at claiming that a lot of things work and are supported, but do not explain at all what to do to get them to work.
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请记住，Windows CE 是一个模块化操作系统，与桌面操作系统不同。虽然 CE 本身支持很多功能，但完全由 OEM 决定他们是否在实际平台中实现或包含对某个功能的支持。
在这种情况下，只有当您有权访问驱动程序代码并且能够更新目标的驱动程序/操作系统时，您才可以让设备在连接时唤醒（假设现在没有）。
本质上，您需要处理连接电缆时生成的中断，并将其连接到电源管理器以告诉系统唤醒。它的代码可能非常少，但除非您是设备 OEM，否则您不太可能实现它。
Keep in mind that Windows CE is a modular OS, unlike a desktop OS. While CE itself supports many things, it's purely up to the OEM to decide if they will implement or include support for a feature in an actual platform.
In this case, you can get the device to wake on connection (assuming it doesn't now) only if you have access to the driver code and the ability to update the driver/OS of the target.
Essentially you need to handle the interrupt generated when the cable is connected and plumb that through to the power manager to tell the system to wake. It's likely to be very little code, but unless you're the device OEM, it's highly unlikely you'll be able to implement it.