Logical Link Control and Adaptation Protocol Specification
L2CAP支援高層協議多路複用、包的分割重組、高質量服務資訊傳輸。接下來講述它的狀態機 、包格式、組成。
SDU(Service Data Unit): 64 kilobytes, L2CAP允許每個通道流控和重傳。
Channel Identifiers(CID): 表示裝置的一個邏輯通道終端。0x0000不會被用。0x0001~ 0x003F被保留。
L2CAP Signaling channel (Fixed Channel 0x0001) L2CAP LE Signaling channel (Fixed Channel 0x0005)
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Logical Link Control and Adaptation Protocol Specification
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