21.0 CTL 80 06 05 03 09 04 04 00 GET DESCRIPTOR 34.1.0
21.0 4 IN 1e 03 32 00 ..2. 34.2.0
21.0 CTL 80 06 05 03 09 04 1e 00 GET DESCRIPTOR 35.1.0
21.0 30 IN 1e 03 32 00 31 00 31 00 32 00 31 00 30 00 34 00 ..2.1.1.2.1.0.4. 35.2.0
32 00 32 00 30 00 31 00 33 00 30 00 37 00 2.2.0.1.3.0.7. 35.2.16
21.3 2 IN 50 03 P. 36.1.0
21.1 10 OUT 63 00 00 00 00 00 01 00 00 00 c......... 37.1.0
21.2 10 IN 81 00 00 00 00 00 01 01 00 01 .......... 38.1.0
21.1 10 OUT 62 00 00 00 00 00 02 00 00 00 b......... 39.1.0
21.2 28 IN 80 12 00 00 00 00 02 00 00 00 3b 7d 96 00 00 00 ..........;..... 40.1.0
88 22 01 90 31 59 d6 35 c0 11 96 94 ."..1Y.5.... 40.1.16
21.1 10 OUT 63 00 00 00 00 00 03 00 00 00 c......... 41.1.0
21.2 10 IN 81 00 00 00 00 00 03 01 00 01 .......... 42.1.0
参见以上红色部分，设备为何会自己发送数据给主机？？？
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