通过时间列可见数据包以20毫秒间隔持续发送。这些标为URB_INTERRUPT的数据包呈现固定模式：8个输出包后跟随2个输入包，其中4个输出包由主机发往设备。初步判断可忽略响应包，专注分析含实际数据的包体。
What does the change on May 20 mean?In the email Amazon sent to users, it stated: "Amazon is discontinuing support for Kindle devices released in 2012 or earlier." But what does discontuning support actually mean? Devices will no longer have web support; therefore, they won't have the Send to Kindle feature, which requires an internet connection. It also means you won't be able to borrow or download books from the Kindle Store, including Libby e-books, since they go through the Kindle Store. In Amazon's email, they also mentioned that if you deregister and factory reset the device, you cannot register it again.
，这一点在豆包下载中也有详细论述
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伊朗嘲讽泽连斯基公开讲话 08:08