USB Hub problem

[Jose Javier Rodriguez]

Hi there,

Firstly, I would want to be grateful for the working that we are doing.

Currently, I am working with a HI802 (rev 1.2). It works very quick and smoothly (the system boots up awesomely fast) but, when I connect a mouse and keyboard both through a USB hub, I have tried with 2 USB Hubs, one with a external power supply and the other one without it and if I connect them with the first one, The system neither recognizes the keyboard nor the mouse but if I connect the USB Hub without power, ubuntu recognizes them but the keyboards does not works properly, it works with "lag" and becomes crazy starting to write the last key pressed infinitely.

Reading through the github, I have found that exists a known issue concerning the USB OTG but I do not know if this issue is related with my problem.

https://github.com/imx6-dongle/linux-imx/issues/6

I have tried to set the UOG_OTGSC = 0; as abrasive says, but if I write this then the system does not boot up.

Could anyone help me?.

Thank you very much!.

Regards,

[Jean-Luc Aufranc]

I had problem with my USB keyboard and mouse as well. I had to try 3 different power supplies for Hi802, until I find one for which it could work reliably.

[Jose Javier Rodriguez]

Hi Jean-Luc,

Could you tell me which model does it works reliably? what is its nominal output current? Currently, I am working with a power supply of  2100 mAh.

Thank you very much!

[Žydrūnas Urbonas]

I too seem to face same issue with USB port

Have you resolved your issue?