If you also have the piubtn connected, it will be opened as well, hitting
the open section in the module. It did forward everything correctly, but
the warning didn't make any sense because the same device was not opened
again. Re-work the code to create a meaningful flow. Also return the open
handle if it ever happens that the device gets re-opened without being
closed.
Required for piuio-khack which needs to convert a single libusb
call into 8 separate calls. In that case, we want to advance the
handlers downstream but reset it once we go back up to the invocation
which needs to scatter to multiple calls. As stated by the documentation,
state handling of the irp is not taken care of. This is fine, since
at this point, we don't know what the function is and the caller needs
to take care of regarding saving and recovering any state in the irp.
This module takes care of emulating the ITG 2 piuio kernel driver
hack. As a separate module, this can be hooked into any chain of
existing hooks providing a greater level of flexibility and
transparency.
icex2