сделать комбинированное устройство ? Хаб ставить ? Вот у меня есть клавиатурка, как раз говорящая хосту, что у нее внутри два HID'а:

Device Descriptor:
bcdUSB: 0x0110
bDeviceClass: 0x00
bDeviceSubClass: 0x00
bDeviceProtocol: 0x00
bMaxPacketSize0: 0x08 (8)
idVendor: 0x0566
idProduct: 0x3107
bcdDevice: 0x0100
iManufacturer: 0x00
iProduct: 0x00
iSerialNumber: 0x00
bNumConfigurations: 0x01

ConnectionStatus: DeviceConnected
Current Config Value: 0x01
Device Bus Speed: Low
Device Address: 0x02
Open Pipes: 2

Endpoint Descriptor:
bEndpointAddress: 0x81
Transfer Type: Interrupt
wMaxPacketSize: 0x0008 (8)
bInterval: 0x0A

Endpoint Descriptor:
bEndpointAddress: 0x00
Transfer Type: Control
wMaxPacketSize: 0x0507 (1287)
wInterval: 0x0382
bSyncAddress: 0x03

Configuration Descriptor:
wTotalLength: 0x003B
bNumInterfaces: 0x02
bConfigurationValue: 0x01
iConfiguration: 0x00
bmAttributes: 0xA0 (Bus Powered Remote Wakeup)
MaxPower: 0x32 (100 Ma)

Interface Descriptor:
bInterfaceNumber: 0x00
bAlternateSetting: 0x00
bNumEndpoints: 0x01
bInterfaceClass: 0x03
bInterfaceSubClass: 0x01
bInterfaceProtocol: 0x01
iInterface: 0x00

HID Descriptor:
bcdHID: 0x0110
bCountryCode: 0x00
bNumDescriptors: 0x01
bDescriptorType: 0x22
wDescriptorLength: 0x0036

Endpoint Descriptor:
bEndpointAddress: 0x81
Transfer Type: Interrupt
wMaxPacketSize: 0x0008 (8)
bInterval: 0x0A

Interface Descriptor:
bInterfaceNumber: 0x01
bAlternateSetting: 0x00
bNumEndpoints: 0x01
bInterfaceClass: 0x03
bInterfaceSubClass: 0x00
bInterfaceProtocol: 0x00
iInterface: 0x00

HID Descriptor:
bcdHID: 0x0110
bCountryCode: 0x00
bNumDescriptors: 0x01
bDescriptorType: 0x22
wDescriptorLength: 0x0034

Endpoint Descriptor:
bEndpointAddress: 0x82
Transfer Type: Interrupt
wMaxPacketSize: 0x0003 (3)
bInterval: 0x0A

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