I found the cause of the lag.
I am using the
node-hid code branch and getting an
ioctl protocol error (which is just a warning)
ioctl (SFEATURE): Protocol error
retryTransfer function fires several times and slows execution.
The data always gets successfully sent, but sometimes
iotcl throws the above warning causing the intermittent lag.
I simply removed the
retryTransfer function. These warnings are still occurring, but no lag.
The lag was just much more pronounced on slower low power USB connections.
The intermittent stall (frame skip) is still occurring (averages about 10 times per minute) on the slower low power USB connections (black and blue) with this actual error being thrown:
ioctl (SFEATURE): Cannot send after transport endpoint shutdown
The high power red USB3.0 connection performs flawlessly, so I will just observe this as a minimum requirement.
For my purposes, this is an acceptable solution, and it avoids plunging into the depths of
None of this is a problem on Windows.