IMX6S: USB OTG Not working in slave mode on imx6s

[muthumani]

I am working with imx6 solo processor with a custom base board which is running android kk 4.4.2.

We have a USB 2.0 HUB connected to SOM on USB_HOST_DP, USB_HOST_DN.

And OTG is connected independent from USB 2.0 HUB to SOM.

When we tried to switch OFF and ON the power to USB 2.0 HUB (which is a GPIO from SOM), peripherals connected to USB HUB is working fine.

When OTG is in slave mode android is not able to work in fastboot / adb.

But it is able to work in HOST mode.

Regards,

M.Muthumani.

[igorpadykov]

Hi Muthumani

for USB OTG one can check if USB connector ID pin is floating

and voltage on porcessor VDD_VBUS_CAP.

Please check also attached document sect.8.2 How do I use Android

fastboot? It makes sense to check OTG in slave mode using MFG Tools:

will it connect and probably with Linux.

Best regards

igor

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