我的tiny6410开发板装的是android系统，另有一以usb芯片cy7c68103a为接口的板子，将该板子连接tiny6410开发板，出现如下问题，串口打印出来：
usb 1-1.1: new full speed USB device using s3c2410-ohci and address 9
usb 1-1.1: unable to read config index 0 descriptor/start: -61
usb 1-1.1: chopping to 0 config(s)
usb 1-1.1: New USB device found, idVendor=04b4, idProduct=0055
usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 1-1.1: Product: USB400MAD
usb 1-1.1: Manufacturer: eRenOUC
usb 1-1.1: no configuration chosen from 0 choices
另外，我用命令cat /proc/bus/usb/devices查看，得到如下结果：
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 0/900 us ( 0%), #Int= 1, #Iso= 0
D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0001 Rev= 2.06
S: Manufacturer=Linux 2.6.36-FriendlyARM ohci_hcd
S: Product=S3C24XX OHCI
S: SerialNumber=s3c24xx
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
E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms
T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=12 MxCh= 4
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=05e3 ProdID=0606 Rev= 7.02
S: Product=USB Hub 2.0
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=255ms
T: Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 9 Spd=12 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #
Cfgs= 0 P: Vendor=04b4 ProdID=0055 Rev= 0.00
S: Manufacturer=eRenOUC
S: Product=USB400MAD
发现配置为0，实际上我在固件程序中设置了一个端点2为bulk端点，这一点在我把板子连到PC机上可以看到，在Cypress USB Console中看到如下图所示：
请大家帮忙看看是什么原因？先谢谢了！
[ 此帖被oucsunjie在2012-04-06 21:11重新编辑 ]
