然後或許想要otg的可以研究一下這一段 USB OTG is supported as of Android's Linux kernel 3.0. Of course it's up to HTC to not type a 0 when building the kernel to disable it.
This means when we get this update and it doesn't have USB OTG then HTC would have to go out of their way to disable it. Which, when having access to the sources, can be reenabled