--- before.txt	2014-03-19 10:51:36.059070826 +0800
+++ after.txt	2014-03-19 10:51:49.915737616 +0800
@@ -8,6 +8,17 @@
 C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
 I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
 
+T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  3 Spd=12  MxCh= 0
+D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
+P:  Vendor=17a0 ProdID=0302 Rev=01.00
+S:  Manufacturer=Samson Technologies
+S:  Product=Samson GoMic
+C:  #Ifs= 4 Cfg#= 1 Atr=80 MxPwr=100mA
+I:  If#= 0 Alt= 0 #EPs= 0 Cls=01(audio) Sub=01 Prot=00 Driver=snd-usb-audio
+I:  If#= 1 Alt= 1 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
+I:  If#= 2 Alt= 1 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
+I:  If#= 3 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=00 Prot=00 Driver=usbhid
+
 T:  Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=5000 MxCh= 2
 D:  Ver= 3.00 Cls=09(hub  ) Sub=00 Prot=03 MxPS= 9 #Cfgs=  1
 P:  Vendor=1d6b ProdID=0003 Rev=03.13