User Manual

PoKeys user manual
60
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7.15. USB interface configuration
The operation of the USB PoKeys devices can be adjusted in the Device > USB interface', as shown on
the figure below.
Figure 37: Accessing USB interface options
By adjusting these options, the user is given the possibility to configure how device reacts on the
system start, change the communication interval and configure which interfaces are visible to the
system. In some situations, omitting the unused interfaces can result in achieving better
performance of the device due to lower load to the system drivers.
Start options
USB PoKeys devices can be configured to either report the support for boot operation or not. Some
PC BIOS versions have problems configuring non-simple (plain keyboard and mouse) devices and may
halt the boot sequence if such device is present. By omitting the PC boot support, this is usually
overcome.
If this however does not fix the problems during the boot sequence, delayed start option give the
possibility to delay the PoKeys device registration on USB for the predetermined delay, which will
result in BIOS not detecting the device and continuing the boot sequence. Adjust the value according
to your system in this case.
Communication interval
By default, PoKeys USB devices use 1 millisecond communication interval for the communication
interface. If for any reason slower communication is required, it can be adjusted using the
Communication interval settings dialog. Communication intervals between 1 millisecond and 20
milliseconds can be configured.