Dan,
I still cannot make it work. Here is the full JNI trace, and the lsusb
output. Thanks for help.
[hotplug](3) JavaxUsbTopologyUpdater.c.build_device[112] Building device
/proc/bus/usb/001/001
[hotplug](3) JavaxUsbTopologyUpdater.c.build_device[136] Device is hub with
2 ports
[hotplug](4) Ja
Ah, multi-setting interface with isoc endpoint(s)...
EINVAL (-22) is unfortunately the usbfs interface's generic error. There
are plenty of different reasons why the kernel would reject a URB with
that error, so it's very hard to tell what specifically the kernel didn't
like. Can you send a