Raspberry Pi (B +): ADB cannot detect my Android device

I am trying to launch ADB on my Raspberry Pi and communicate with a connected Android device. The Pi cannot constantly detect my device. When I run "adb devices" it comes back empty. This requires a powerful USB hub. Meaning, if I use a powered USB hub to connect the same device to the same pi, it runs constantly. This led me to think that maybe the USB port on the Pi cannot connect the device, so I used the measured power and / or current that the device draws from the Pi and the hub and they seem to be the same (I: 0.46amps and U: 5V ).

Can anyone help me understand what is going on? The same device was found on my Ubuntu desktop and Mac Pro laptop. Also noticed my Samsung S5 is being detected by ADB on the Pi (no USB power).

I have already tried the following.

• Updated udev rules file. Build an ADB tool for armV6 platform and it works.
• Updated my Raspberry Pi (packages, kernel 4.07+ and firmware) but follow these steps: http://stevenhickson.blogspot.com/2013/02/updating-your-raspberry-pi-packages.html
• Run 'dmesg' on the Pi and I can see the device and its serial number
• Running "lsusb" shows the device with the correct vendor and product IDs.
• Tried updating the file '/boot/config.txt' with 'max_usb_current = 1'.
• Tried setting control output 38 of gpio magic by following these steps: https://projects.drogon.net/testing-setting-the-usb-current-limiter-on-the-raspberry-pi-b/