还不会用bus hound 请指点一下

[复制链接]

1866|0

手机看帖

扫描二维码
随时随地手机跟帖

电梯直达

楼主

huangqi412| 总工程师

楼主 | 2007-9-6 13:08 | 只看该作者回帖奖励

|倒序浏览 |阅读模式

HOUND, transf, ST, se, TRANSFER

还是没看懂bus hound
现在我用来监测usb口

做了个断点只到第一次请求设备描叙符，还没有到分配地址
没进入地址状态前
Device  Phase  Data                                                Description       Cmd.Phase.Ofs(rep)
------  -----  --------------------------------------------------  Device  Phase  Data                                                Description
------  -----  --------------------------------------------------  ----------------
  19.1  URB    48 00 09 00  00 00 00 00  00 52 f1 85  22 00 00 00  BULK/INT XFER
               d4 98 3f 86  03 00 00 00  00 00 00 00  20 d9 5b 86
  19.0  CTL    a3 00 00 00  08 00 04 00                            GET STATUS
  19.0  DI     01 05 01 00                                         ....
  19.0  URB    50 00 08 00  00 00 00 00  00 52 f1 85  22 00 00 00  CONTROL TRANSFER
               18 52 f1 85  0b 00 00 00  04 00 00 00  98 d1 13 86
  19.0  CTL    a3 00 00 00  08 00 04 00                            GET STATUS
  19.0  DI     01 05 01 00                                         ....
  19.0  URB    50 00 08 00  00 00 00 00  00 52 f1 85  22 00 00 00  CONTROL TRANSFER
               18 52 f1 85  0b 00 00 00  04 00 00 00  98 68 27 86
  19.0  CTL    23 01 10 00  08 00 00 00                            CLEAR FEATURE
  19.0  URB    50 00 08 00  00 00 00 00  00 52 f1 85  20 00 00 00  CONTROL TRANSFER
               18 52 f1 85  0a 00 00 00  00 00 00 00  00 00 00 00
  19.0  CTL    a3 00 00 00  01 00 04 00                            GET STATUS
  19.0  DI     00 05 00 00                                         ....

为什么就有这么多数据呢，而且我也没找到那个80开头的8字节的请求数据。

使用特权