固件中如何将Current Config Value置1啊??

Device Descriptor:
bcdUSB:             0x0100
bDeviceClass:         0xDC
bDeviceSubClass:      0x00
bDeviceProtocol:      0x00
bMaxPacketSize0:      0x10 (16)
idVendor:           0x0471 (Philips)
idProduct:          0x0666
bcdDevice:          0x0100
iManufacturer:        0x00
iProduct:             0x00
iSerialNumber:        0x00
bNumConfigurations:   0x19

ConnectionStatus: DeviceConnected
Current Config Value: 0x00<------------这里
Device Bus Speed:     Full
Device Address:       0x00<------------这里也不会
Open Pipes:              0

自己在不顶就跑第2页去了

或者问什么时候系统发出设置配置命令阿??我一直都收不到那个命令怎么办啊....