topic Re: Configuring EHCI USB-OTG using Yacto project(kernel version 3.10.17-r0) on imx6q-sabreauto. in i.MX Processors

Configuring EHCI USB-OTG using Yacto project(kernel version 3.10.17-r0) on imx6q-sabreauto.

gauravpandya — Mon, 15 Sep 2014 15:05:14 GMT

Hi All,

I am new to free-scale platform and just started working on Yacto-Project.

I have setup my working environment and imx6q-sabreauto board too.

Following are few questions which are not clear to me.

1) Using kernel 3.10.17 can we use USB_OTG functionality.

2) If we can usb USB_OTG as device and peripheral both then which drivers or

configurations would be needed.

3) I have set-up for kernel 3.0.35 where i can use USB-OTG as host as well as Device.

but using kernel 3.10.17 i am not able to do same.

4) There is much change from kernel 3.0.35 to kernel 3.10.17. Lot of files being moved out.

Please provide some inputs on above points.

Thanks

Gaurav

Re: Configuring EHCI USB-OTG using Yacto project(kernel version 3.10.17-r0) on imx6q-sabreauto.

gauravpandya — Tue, 16 Sep 2014 05:16:16 GMT

Hi Everyone,

Please give some inputs.

Thanks,

Gaurav

Re: Re: Configuring EHCI USB-OTG using Yacto project(kernel version 3.10.17-r0) on imx6q-sabreauto.

CarlosCasillas — Fri, 19 Sep 2014 21:55:01 GMT

Hi Gaurav,

Have you tried modifing the DTS file? Section 41.2.6 "Changing the Controller Operation Mode" of the i.MX 6 Linux Reference Manual specifies the following:

dr_mode = "host" /* Set controller as gadget-only mode */

dr_mode = "peripheral" /* Set controller as host-only mode */

dr_mode = "otg" /* Set controller as otg mode */

You could find this document as attachment,

Hope this will be useful for you.
Best regards!
/Carlos

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