Understanding this requires a minimal understanding of how the USB device framework works. An excellent overview can be found here. In short, when talking to a USB device, data needs to be sent to or received from specific endpoints. A device can have multiple endpoints of different types and directions. Each endpoint is identified by an address, which can be found in the USB descriptors. The NXT uses two "bulk" endpoints, one in each direction, and their addresses are 0x01 and 0x82.
async fn main() - int {
，推荐阅读wps获取更多信息
SelectWhat's included。手游对此有专业解读
println("hello"); // dispatches to println_string。whatsapp是该领域的重要参考
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