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为什么CSW之后又有一次DI？
bus hound抓的数据如下：
12.3 DO 55 53 42 43 88 9b 3f 81 c0 00 00 00 80 00 06 1a USBC..?......... 145.1.0 00 1c 00 c0 00 00 00 00 00 00 00 00 00 00 00 ............... 145.1.16 12.2 DI 00 0e 00 00 00 00 00 00 1c 06 00 05 00 00 00 00 ................ 146.1.0 12.2 DI 55 53 42 53 88 9b 3f 81 b0 00 00 00 00 USBS..?...... 147.1.0 13 DI 00 0e 00 00 00 00 00 00 1c 06 00 05 00 00 00 00 ................ 148.1.0 13 SSTS 12 data overrun 148.2.0 12.3 DO 55 53 42 43 08 97 3f 81 c0 00 00 00 80 00 06 1a USBC..?......... 149.1.0 00 3f 00 c0 00 00 00 00 00 00 00 00 00 00 00 . ?............. 149.1.16 12.2 DI 00 46 00 00 00 00 00 00 01 0a 00 32 00 00 00 00 .F.........2.... 150.1.0 32 00 00 00 05 1e 03 e8 02 20 02 00 00 7f 00 00 2........ ...... 150.1.16 00 00 00 00 00 00 00 05 30 00 00 00 00 00 00 00 ........0....... 150.1.32 01 40 00 00 1b 0a 00 01 00 00 00 00 00 00 00 00 .@.............. 150.1.48 1c 06 00 05 00 00 00 00 ........ 150.1.64 12.2 DI 55 53 42 53 08 97 3f 81 b8 00 00 00 00 USBS..?...... 151.1.0 13 DI 00 46 00 00 00 00 00 00 01 0a 00 32 00 00 00 00 .F.........2.... 152.1.0 32 00 00 00 05 1e 03 e8 02 20 02 00 00 7f 00 00 2........ ...... 152.1.16 00 00 00 00 00 00 00 05 30 00 00 00 00 00 00 00 ........0....... 152.1.32 01 40 00 00 1b 0a 00 01 00 00 00 00 00 00 00 00 .@.............. 152.1.48 1c 06 00 05 00 00 00 00 ........ 152.1.64 13 SSTS 12 data overrun 152.2.0 12.3 DO 55 53 42 43 08 00 40 81 08 00 00 00 80 00 0a 25 USBC..@........% 153.1.0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ............... 153.1.16 12.2 DI 00 01 ff ff 00 00 08 00 ........ 154.1.0 12.2 DI 55 53 42 53 08 00 40 81 00 00 00 00 00 USBS..@...... 155.1.0 13 DI 00 01 ff ff 00 00 08 00 ........ 156.1.0 问题1：为什么这几条命令，我发送完CSW之后又收到一条DI?可能是什么原因呢？ 问题2：data overrun是怎么回事？ 感谢各位关注！ |
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