With the Arduino Expansion Board and using the command lsusb you should be having the following results:
The switch closest to the micro USB ports
unable to initialize libusb: -99
The switch closest to the USB Host
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
What is the output of running the command configure_edison --version and uname -a?
Which are the specifications of the power supply you are using? If you are getting the message “unable to initialize libusb: -99” in both positions of the switch the problem could be that the power is not enough for using the USB Host. This also happens with the Breakout Board if a power supply is not used.
Please let us know the current and voltage specifications of the power supply you are using before trying with another one. Remember that the valid range is 7V – 15V
This is a thread related to what you want to accomplish, take a look at it, it may be helpful: Reading USB-Serial GPS from OTG Port
root@edison:~# configure_edison --version
root@edison:~# uname -a
Linux edison 3.10.17-poky-edison+ #1 SMP PREEMPT Fri Jun 19 12:06:40 CEST 2015 i686 GNU/Linux
moving the switch doesn't fix the -99 error, and I'm using the power supply that came with it.
The Edison Module + Arduino Expansion Board do not include a power supply.
Did you bought a development kit? Could you provide a link to the kit you are using?
Could you test the output of the power supply? This is to verify the real voltage and current in it.
Is this the only problem you are having with the board?
What is the output of running dmesg | grep usb with the switch closest to the USB OTG?
the power supply is 12V 4A
the -99 appeared whcihever way the switch was left
we ended up figuring out how to flash ubilinux so this topic is defunct