A few things I noticed while going through the system profile you sent in another time:

- you seem to have leftovers from a previous mira install on your system (at least, "miraUSBDriver" turns up in the IOKit registry dump)

- I see a lot of "com_parallels_usb_connect" entries during your machine's boot. I haven't used Parallels for a long time (switched to VMware as soon as it became available), so I don't know whether or not devices connected to its virtual machines are automatically grabbed even if the VMs are not in use. I recommend to at least look through your Parallels' VMs to exclude the possibility that Parallels is the cause.

Best regards, 
Felix Schwarz