Despite it's a Microsoft product, it's actually very nice and useful. A
little pad with a few buttons and connectors for a headset. It's an USB
device, but it doesn't represent itself as an input/HID device:
HID device not claimed by input or hiddev
I plugged it into a windows box and the USB protocol it uses looks very
simple (see attachment): everytime I press one of the eight buttons, it
sends one byte, a bitmap of the pressed buttons.
What would be the best way to have this device appear in the system?
Having a separate driver/device node? Or is it possible to have a small
driver that would translate the gamevoice commands into evdev messages
and have a new /dev/input/eventX device appear?
I could write something like that myself, my C skills are good enough
for that, I'd just need some advice how to use the kernel USB/evdev
interfaces.
tom
[883650 ms] UsbSnoop - MyDispatchInternalIOCTL(f56b8e80) : fdo=82adb998, Irp=848e0008, IRQL=2
[883650 ms] >>> URB 68 going down >>>
-- URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER:
PipeHandle = 83a38fdc [endpoint 0x00000081]
TransferFlags = 00000003 (USBD_TRANSFER_DIRECTION_IN, USBD_SHORT_TRANSFER_OK)
TransferBufferLength = 00000001
TransferBuffer = 857fc078
TransferBufferMDL = 00000000
UrbLink = 00000000
[883970 ms] UsbSnoop - MyInternalIOCTLCompletion(f56b8db0) : fido=848db578, Irp=82ae9a78, Context=855c96d0, IRQL=2
[883970 ms] <<< URB 67 coming back <<<
-- URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER:
PipeHandle = 83a38fdc [endpoint 0x00000081]
TransferFlags = 00000003 (USBD_TRANSFER_DIRECTION_IN, USBD_SHORT_TRANSFER_OK)
TransferBufferLength = 00000001
TransferBuffer = 85768370
TransferBufferMDL = 831f13d8
00000000: 0c
UrbLink = 00000000
[883970 ms] UsbSnoop - DispatchAny(f56b7610) : IRP_MJ_INTERNAL_DEVICE_CONTROL
[883970 ms] UsbSnoop - MyDispatchInternalIOCTL(f56b8e80) : fdo=82adb998, Irp=82ae9a78, IRQL=2
[883970 ms] >>> URB 69 going down >>>
-- URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER:
PipeHandle = 83a38fdc [endpoint 0x00000081]
TransferFlags = 00000003 (USBD_TRANSFER_DIRECTION_IN, USBD_SHORT_TRANSFER_OK)
TransferBufferLength = 00000001
TransferBuffer = 85768370
TransferBufferMDL = 00000000
UrbLink = 00000000
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