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阅读：1373回复：2
Get Max Lun后，PC又发个reset，然后再来INQUIRY，正常吗？
Get Max Lun后，回复了0x01，PC收到后就发个reset过来，我处理reset后，PC发来INQUIRY，后面啥啥都正常，读写也可以
但我觉得Get Max Lun后，正常情况下不应该发reset呀 各位兄弟的机器上Get Max Lun后有reset吗？ ------------------------------------------ 还有个问题也一并请教了 我的USB驱动里面有些RETAILMSG来打印信息，但release时我把RETAILMSG都关掉了，但奇怪的问题出现了，当连上串口（通过串口连到PC，但RETAILMSG关了，所以也不会有打印信息）USB可以连接上并可以通过USB正常访问SD卡，但把串口拔掉，就连不上了，通过bushound看到如下信息 23.0 CTL 80 06 00 01 00 00 12 00 GET DESCRIPTOR 23.0 USTS 0c 00 00 c0 buffer overrun 23.0 URB 50 00 08 00 0c 00 00 c0 e8 95 99 81 22 00 00 00 CONTROL TRANSFER 00 96 99 81 0b 00 00 00 00 00 00 00 68 49 bf 81 58 3b 8e 81 00 00 00 00 ff ff ff ff 0d f0 ad de 54 00 53 00 5c 00 53 00 53 00 45 00 52 00 49 00 23.0 CTL 80 06 00 01 00 00 12 00 GET DESCRIPTOR 23.0 USTS 05 00 00 c0 no response 23.0 URB 50 00 08 00 05 00 00 c0 e8 95 99 81 22 00 00 00 CONTROL TRANSFER 00 96 99 81 0b 00 00 00 00 00 00 00 68 49 bf 81 30 d6 87 81 00 00 00 00 ff ff ff ff 0d f0 ad de 54 00 53 00 5c 00 53 00 53 00 45 00 52 00 49 00 23.0 CTL 80 06 00 01 00 00 12 00 GET DESCRIPTOR 23.0 USTS 05 00 00 c0 no response 23.0 URB 50 00 08 00 05 00 00 c0 e8 95 99 81 22 00 00 00 CONTROL TRANSFER 00 96 99 81 0b 00 00 00 00 00 00 00 68 49 bf 81 38 9e fa 81 00 00 00 00 ff ff ff ff 0d f0 ad de 54 00 53 00 5c 00 53 00 53 00 45 00 52 00 49 00 并且这种情况在联想的机器上会出现，在dell上试了下又没出现，劳烦知道的兄弟指明下方向呀 感谢 |
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沙发#
发布于：2007-11-28 21:28
把你“Get Max Lun后，回复了0x01，PC收到后就发个reset过来，我处理reset后，PC发来INQUIRY”这一段的数据抓下来贴出来瞅瞅！！
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板凳#
发布于：2007-11-29 09:33
感谢楼上先
23.0 CTL a1 fe 00 00 00 00 01 00 GET MAX LUN 6.1.0 23.0 LEN 01 00 00 00 1 6.2.0 23.0 DI 00 . 6.3.0 23.0 URB 50 00 08 00 00 00 00 00 30 97 98 81 22 00 00 00 CONTROL TRANSFER 6.4.0 48 97 98 81 0b 00 00 00 01 00 00 00 08 7a 9a 81 6.4.16 d8 52 6f 81 00 00 00 00 ff ff ff ff 0d f0 ad de 6.4.32 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 6.4.48 00 00 00 00 00 00 00 00 a1 fe 00 00 00 00 01 00 6.4.64 23.4 URB 48 00 09 00 05 00 00 c0 30 97 98 81 22 00 00 00 BULK/INT XFER 7.1.0 24 77 ac 81 00 00 00 00 00 00 00 00 80 4d 71 81 7.1.16 60 5c 7f 81 00 00 00 00 ff ff ff ff 0d f0 ad de 7.1.32 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 7.1.48 00 00 00 00 00 00 00 00 7.1.64 23 RSET 8.1.0 23.4 LEN 1f 00 00 00 31 9.1.0 23.4 DO 55 53 42 43 50 f4 7e 81 24 00 00 00 80 00 06 12 USBCP...$....... 9.2.0 00 00 00 24 00 00 00 00 00 00 00 00 00 00 00 ...$........... 9.2.16 23.4 URB 48 00 09 00 00 00 00 00 a0 6c 91 81 22 00 00 00 BULK/INT XFER 9.3.0 24 77 ac 81 00 00 00 00 1f 00 00 00 80 4d 71 81 9.3.16 50 f5 ac 81 00 00 00 00 ff ff ff ff 0d f0 ad de 9.3.32 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9.3.48 00 00 00 00 00 00 00 00 9.3.64 23.1 LEN 24 00 00 00 36 10.1.0 23.1 DI 00 80 00 00 1f 00 00 00 41 70 69 63 61 6c 20 20 ........Apical 10.2.0 47 50 53 20 20 20 20 20 20 20 20 20 20 20 20 20 GPS 10.2.16 31 2e 30 30 1.00 10.2.32 23.1 URB 48 00 09 00 00 00 00 00 a0 6c 91 81 20 00 00 00 BULK/INT XFER 10.3.0 04 77 ac 81 03 00 00 00 24 00 00 00 00 00 00 00 10.3.16 30 13 84 81 00 00 00 00 ff ff ff ff 0d f0 ad de 10.3.32 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 10.3.48 00 00 00 00 00 00 00 00 10.3.64 23.1 LEN 0d 00 00 00 13 11.1.0 23.1 DI 55 53 42 53 50 f4 7e 81 00 00 00 00 00 USBSP........ 11.2.0 23.1 URB 48 00 09 00 00 00 00 00 a0 6c 91 81 22 00 00 00 BULK/INT XFER 11.3.0 04 77 ac 81 01 00 00 00 0d 00 00 00 80 4d 71 81 11.3.16 08 90 93 81 00 00 00 00 ff ff ff ff 0d f0 ad de 11.3.32 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 11.3.48 00 00 00 00 00 00 00 00 |
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