I am currently working on a project which requires a USB 2.0 hub to provide connectivity to a touchscreen LCD panel and a USB flash drive. The touchscreen USB is connected at boot and operates fine. When I insert the flash drive after the system has started I get the following error message which repeats approximately every 5 seconds in the dmesg output:
hub_port_status failed (err = -110)
Power cycling the BBB seems to be the only thing that will resolve this issue.
I have experienced this with the current 3.8 and the current 4.1 bone kernels with a dogtag of Debian Image 2015-11-12