用BUS HOUND监视虚拟串口的枚举过程,先打开BUS HOUND监视功能再插入USB虚拟串口,俘获到下列信息,为什么没有设备描述符、配置描述符等的获取过程?
--------------------------------
Device Phase Data Description Cmd.Phase.Ofs(rep)
------ ----- -------------------------------------------------- ---------------- ------------------
25.0 CTL 00 01 01 00 00 00 00 00 CLEAR FEATURE 1.1.0
25.1 IN 08 00 .. 2.1.0
25.0 CTL a3 00 00 00 03 00 04 00 GET STATUS 3.1.0(2)
25.0 IN 01 01 01 00 .... 3.2.0
25.0 CTL 23 01 10 00 03 00 00 00 CLEAR FEATURE 5.1.0
25.0 CTL a3 00 00 00 01 00 04 00 GET STATUS 6.1.0
25.0 IN 00 01 00 00 .... 6.2.0
25.0 CTL a3 00 00 00 02 00 04 00 GET STATUS 7.1.0
25.0 IN 00 01 00 00 .... 7.2.0
25.0 CTL a3 00 00 00 03 00 04 00 GET STATUS 8.1.0(2)
25.0 IN 01 01 00 00 .... 8.2.0
25.0 CTL 23 03 04 00 03 00 00 00 SET FEATURE 10.1.0
25.1 IN 08 00 .. 11.1.0
25.0 CTL a3 00 00 00 03 00 04 00 GET STATUS 12.1.0
25.0 IN 03 01 10 00 .... 12.2.0
25.0 CTL 23 01 14 00 03 00 00 00 CLEAR FEATURE 13.1.0
25.0 CTL a3 00 00 00 03 00 04 00 GET STATUS 14.1.0(3)
25.0 IN 03 01 00 00 .... 14.2.0
25.0 CTL 23 03 04 00 03 00 00 00 SET FEATURE 17.1.0
25.1 IN 08 00 .. 18.1.0
25.0 CTL a3 00 00 00 03 00 04 00 GET STATUS 19.1.0
25.0 IN 03 01 10 00 .... 19.2.0
25.0 CTL 23 01 14 00 03 00 00 00 CLEAR FEATURE 20.1.0
25.0 CTL a3 00 00 00 03 00 04 00 GET STATUS 21.1.0
25.0 IN 03 01 00 00 .... 21.2.0
25.0 CTL a3 00 00 00 04 00 04 00 GET STATUS 22.1.0
25.0 IN 00 01 00 00 .... 22.2.0
25.0 CTL a3 00 00 00 05 00 04 00 GET STATUS 23.1.0
25.0 IN 00 01 00 00 .... 23.2.0
25.0 CTL a3 00 00 00 06 00 04 00 GET STATUS 24.1.0
25.0 IN 00 01 00 00 .... 24.2.0
25.0 CTL a3 00 00 00 07 00 04 00 GET STATUS 25.1.0
25.0 IN 00 01 00 00 .... 25.2.0
25.0 CTL a3 00 00 00 08 00 04 00 GET STATUS 26.1.0
25.0 IN 00 01 00 00 .... 26.2.0
26.0 CTL 80 06 00 03 00 00 ff 00 GET DESCRIPTOR 27.1.0(2)
26.0 IN 04 03 09 04 .... 27.2.0
26.0 CTL 80 06 02 03 09 04 ff 00 GET DESCRIPTOR 28.1.0(2)
26.0 IN 20 03 55 00 53 00 42 00 20 00 56 00 69 00 72 00 .U.S.B. .V.i.r. 28.2.0
74 00 75 00 61 00 6c 00 20 00 43 00 4f 00 4d 00 t.u.a.l. .C.O.M. 28.2.16
25.0 CTL 80 00 00 00 00 00 02 00 GET STATUS 31.1.0(3)
25.0 IN 01 00 .. 31.2.0
|