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我用USBdongle（蓝牙芯片是cc2540）做主机和另一个cc2540芯片实现了串口透传，从机串口输入数据传输时主机会有ATT_HandleValueNotification事件。请问主机传输数据到从机用什么HCI指令？（数据是byte类型的数组）
HCI命令可以参考 http://m.blog.csdn.net/blog/xiaoleiacm/44036607
HCI指令中ACL数据包ATT包分别指什么？串口透传中传输数据用的是哪个包，用什么指令？
