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imx6q USB OTG does not work in device mode

Question asked by j b on Aug 6, 2014
Latest reply on Mar 12, 2018 by Tzipi Kluska

I have an IMX6 sabre SD board running Linux version 3.0.35.

The USB OTG port works find in host mode (when used with an OTG cable), but does not respond in device mode when the board is connected to a PC.  lsusb on the PC shows no sign of the imx6 board.

 

I probed the D+ and D- lines on the board and neither is moves when the host cable is plugged in, so it is not responding properly as a device.  A high speed device is suppose to drive D+ high and a low speed device is suppose to drive D- high.

 

Anybody have this working and know what's wrong?

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