USB hot plugging issues with the BeagleBone Black

Bought the BeagleBone Black somewhere in October.

The USB host port worked fine. No issues with cold plugging and no issues with
hot plugging.

I screwed something else up and had to reinstall the OS.

Got the 'latest image' from http://beagleboard.org/latest-images, which dated
back to june 20th. It seemed reasonable that this was in fact the latest image.

Succesfully flashed the eMMC using the angstrom image from june the 20th.

Issues arose with the USB host port. No issues with cold plugging. However,
hot plugging no longer worked. No error messages were sent to the journalctl when
hot plugging, it just didn't seem to detect it at all. When a coldplugged USB
device was removed journalctl reported messages like:
    usb 1-1: device descriptor read/64, error -19
    hub 1-0:1.0: unable to enumerate USB device o... 1
    hub 1-0:1.0: port 1 enable change, status 00000101
After that once again no activity when hotplugging the USB device.

I thought that this was because I was now using a newer image than the image
that was installed on the eMMC when I received my BeagleBone Black.

I found a patch on github that basically FIXED an issue with hot plugging
devices in the BeagleBone Black, that indicated that either this fix didn't
made it to the current image or that I was now using an older image than the
one my BeagleBone Black was shipped with.

After a chat with ... it became known that the latter was true. The 'latest
images' were in fact not, the latest images. He updated the image to the actual
latest image (of October the 4th).

I then flashed the eMMC with the image of October the 4th, only to find out
that I was still having issues with hot plugging USB devices.

It can't be a power issue as I'm using an external power source. Error -71
would indicate an issue with (lack of) power, but i'm getting error -19 messages
, I have been unable to find any information about that error online.