- Sometimes the device does not seem to receive commands to toggle the status lights. After resetting uOSC, it works again.
- USB Prober only seems to work correctly before the serial port is activated. Suspect the control endpoint isn't getting serviced because it is starved by activity on the CDC data endpoint.
- On Mac OSX (we test with 10.5) in some pathological conditions the USB system becomes unstable, possibly due to a bug in the driver, aberrant behavior by uOSC, or some combination thereof.
Rebooting the computer fixes the problem. Often, plugging the device into a different physical USB port also solves the problem.
The following symptoms may present:
- Device reporting rate drops remarkably--it should be at about 500 hz always.
- Device appears to not "get" messages.
- Device doesn't unload, its entry in /dev/tty won't go away.
- Kernel panic (very rare but it has happened)
- Unusually high level of OSC parser errors reported by the OpenSoundControl object.
- uOSC may be incompatible with some hubs, possibly with unpowered hubs in particular.
- There may be some evidence that the Bootdown PIC programmer occasionally fails to detect some error resulting in a corrupted ROM. If the device acts very strange, re-flashing the firmware may be necessary.
