请教为何windows只能识别1个LUN

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更多发布于：2007-11-28 20:07

小弟我做USB mass storage bulk only设备，已经基本完成，windows出现盘符且读写正确。
为何windows只能识别1个LUN，get_max_lun已经正确返回4
还有什么地方要注意吗，请大侠指教
下面是bushound抓的包，windows根本不对其他LUN发包

  28.0 CTL 80 06 00 01 00 00 12 00 GET DESCRIPTOR 1.1.0 08:35:49.771
  28.0 DI 12 01 00 02 00 00 00 40 58 59 20 20 01 00 00 00 00 01 .......@XY .... 1.2.0 08:35:49.772
  28.0 CTL 80 06 00 02 00 00 09 00 GET DESCRIPTOR 2.1.0 08:35:49.772
  28.0 DI 09 02 20 00 01 01 00 80 fa .. ...... 2.2.0 08:35:49.774
  28.0 CTL 80 06 00 02 00 00 20 00 GET DESCRIPTOR 3.1.0 08:35:49.774
  28.0 DI 09 02 20 00 01 01 00 80 fa 09 04 00 00 02 08 06 50 00 07 05 81 02 00 02 ff 07 05 02 02 40 00 ff .. ............. 3.2.0 08:35:49.775
  28.0 CTL 00 09 01 00 00 00 00 00 SET CONFIG 4.1.0 08:35:49.775
  28.0 CTL 01 0b 00 00 00 00 00 00 SET INTERFACE 5.1.0 08:35:49.830
  28.0 CTL a1 fe 00 00 00 00 01 00 GET MAX LUN 6.1.0 08:35:49.892
  28.0 DI 04 . 6.2.0 08:35:49.893
  28.2 DO 55 53 42 43 28 a5 dd 85 24 00 00 00 80 00 06 12 00 00 00 24 00 00 00 00 00 00 00 00 00 00 00 USBC(...$....... 7.1.0 08:35:49.900
  28.1 DI 00 80 00 01 1f 00 00 00 59 41 4e 47 58 20 20 20 4e 41 4e 44 20 20 20 20 20 20 20 20 20 20 20 20 ........YANGX 8.1.0 08:35:49.901
   31 2e 30 30 1.00 8.1.32
  28.1 DI 55 53 42 43 28 a5 dd 85 00 00 00 00 00 USBC(........ 9.1.0 08:35:49.901
  28.2 DO 55 53 42 43 28 a5 dd 85 fc 00 00 00 80 00 0a 23 00 00 00 00 00 00 00 fc 00 00 00 00 00 00 00 USBC(..........# 10.1.0 08:35:49.901
  28.1 DI 00 00 00 08 00 00 08 00 02 00 02 00 ............ 11.1.0 08:35:49.902
  28.1 DI 55 53 42 43 28 a5 dd 85 00 00 00 00 00 USBC(........ 12.1.0 08:35:49.902
  30 CDB 12 00 00 00 24 00 INQUIRY 13.1.0 08:35:49.904
  30 DI 00 80 00 01 1f 00 00 00 59 41 4e 47 58 20 20 20 4e 41 4e 44 20 20 20 20 20 20 20 20 20 20 20 20 ........YANGX 13.2.0 08:35:49.904
   31 2e 30 30 1.00 13.2.32
  30 CDB 25 00 00 00 00 00 00 00 00 00 READ CAPACITY 14.1.0 08:35:49.904
  28.2 DO 55 53 42 43 28 a5 dd 85 08 00 00 00 80 00 0a 25 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 USBC(..........% 15.1.0 08:35:49.904
  28.1 DI 00 00 07 ff 00 00 02 00 ........ 16.1.0 08:35:49.905
  28.1 DI 55 53 42 43 28 a5 dd 85 00 00 00 00 00 USBC(........ 17.1.0 08:35:49.905
  30 DI 00 00 07 ff 00 00 02 00 ........ 14.2.0 08:35:49.905
  30 CDB 28 00 00 00 00 00 00 00 01 00 READ 18.1.0 08:35:49.905
  28.2 DO 55 53 42 43 28 a5 dd 85 00 02 00 00 80 00 0a 28 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 USBC(..........( 19.1.0 08:35:49.905
  28.1 DI eb 3c 90 4d 53 44 4f 53 35 2e 30 00 02 01 01 00 02 00 02 00 08 f8 06 00 01 00 01 00 00 00 00 00 .<.MSDOS5.0..... 20.1.0 08:35:49.906
   00 00 00 00 00 00 29 61 11 97 8c 4e 4f 20 4e 41 4d 45 20 20 20 20 46 41 54 31 32 20 20 20 33 c9 ......)a...NO NA 20.1.32
  28.1 DI 55 53 42 43 28 a5 dd 85 00 00 00 00 00 USBC(........ 21.1.0 08:35:49.906
  30 DI eb 3c 90 4d 53 44 4f 53 35 2e 30 00 02 01 01 00 02 00 02 00 08 f8 06 00 01 00 01 00 00 00 00 00 .<.MSDOS5.0..... 18.2.0 08:35:49.906
   00 00 00 00 00 00 29 61 11 97 8c 4e 4f 20 4e 41 4d 45 20 20 20 20 46 41 54 31 32 20 20 20 33 c9 ......)a...NO NA 18.2.32

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发布于：2007-12-18 15:58

windows这么做是有原因的。思考一下iSerialNumber的作用就明白了。

清风拂柳

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yx9527 驱动牛犊注册日期2005-10-09 最后登录2008-01-04 粉丝0 关注0 积分60分威望7点贡献值0点好评度6点原创分0分专家分0分加关注写私信	板凳^# 发布于：2007-11-29 17:50 问题找到，是因为device descriptor iSerialNumber= 0，没有实现string descriptor 奇怪的windows
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wengzuhong 驱动小牛注册日期2004-07-16 最后登录2014-10-22 粉丝3 关注1 积分9分威望262点贡献值0点好评度219点原创分0分专家分0分加关注写私信	地板^# 发布于：2007-11-28 20:13 我也想知道啊
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请教为何windows只能识别1个LUN

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