How to config the usb device with uboot

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How to config the usb device with uboot

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wangyan
Contributor I

My board is FSL board imx6ul EVK board.

I want to realize the function of USB virtual serial port.

I  tried to config uboot using uboot 2016.03 and 2017.11,but failed .
So could anybody tell me  how to config the uboot and what do  I need to pay attention to?

Thank you !

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Carlos_Musich
NXP Employee
NXP Employee

Hi wang,

do you mean that you are not able to see the uboot output in the console?

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wangyan
Contributor I

Hi,Carlos_Musich

I didn't mean that.let me give an example to describe the problem .

If I config the linux kernel 4.1.15 like this :

make menuconfig

Device drivers --->

USB support --->

<*> ChipIdea Highspeed Dual Role Controller

ChipIdea device controller

<*> USB Gadget Support --->

<*> ChipIdea Highspeed Dual Role Controller

ChipIdea device controller

<*> USB Gadget Support --->

<*> USB Gadget Drivers (Serial Gadget (with CDC ACM and CDC OBEX support)

make and load zImage into board,plug the board into computer using usb cable .

In PC I installed gadgetserial driver ,

when I open the device manager , I find a serial port device :Blackin Com Port (COM4)

Now I want to do this in the uboot ,don't use linux kernel .

So how to config the uboot to implement this function .

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