Télécharge ce petit logiciel USBview
Cela permet de voir certaine chose gérant l'USB.
http://www.ftdichip.com/Support/Utilities/usbview.zip
Et par la suite modifier le driver.
voilà ce que j'ai concernant l'opcom
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Device Descriptor:
bcdUSB: 0x0200
bDeviceClass: 0x00
bDeviceSubClass: 0x00
bDeviceProtocol: 0x00
bMaxPacketSize0: 0x08 (8)
idVendor: 0x0403 (Future Technology Devices International Limited)
idProduct: 0x4F50
bcdDevice: 0x0600
iManufacturer: 0x01
0x0409: "AUTO-M3 Ltd."
iProduct: 0x02
0x0409: "OP-COM USB V2"
0x0409: "OP-COM USB V2"
iSerialNumber: 0x03
0x0409: "FTPSNO56"
bNumConfigurations: 0x01
ConnectionStatus: DeviceConnected
Current Config Value: 0x00
Device Bus Speed: Full
Device Address: 0x02
Open Pipes: 0
Configuration Descriptor:
wTotalLength: 0x0020
bNumInterfaces: 0x01
bConfigurationValue: 0x01
iConfiguration: 0x00
bmAttributes: 0xA0 (Bus Powered Remote Wakeup)
MaxPower: 0x2D (90 Ma)
Interface Descriptor:
bInterfaceNumber: 0x00
bAlternateSetting: 0x00
bNumEndpoints: 0x02
bInterfaceClass: 0xFF
bInterfaceSubClass: 0xFF
bInterfaceProtocol: 0xFF
iInterface: 0x02
0x0409: "OP-COM USB V2"
0x0409: "OP-COM USB V2"
Endpoint Descriptor:
bEndpointAddress: 0x81 IN
Transfer Type: Bulk
wMaxPacketSize: 0x0040 (64)
bInterval: 0x00
Endpoint Descriptor:
bEndpointAddress: 0x02 OUT
Transfer Type: Bulk
wMaxPacketSize: 0x0040 (64)
bInterval: 0x00
avec un point d'exclamation sur l'icone concernant ce port