[U-Boot] how to support usbtty

[Wolfgang Denk]

Dear mikezh,

In message <19167791.post at talk.nabble.com> you wrote:
> 
> Any document on how to use usbtty? 

Did you read the README?

You enable it using the commands "setenv stdout usbtty; setenv stdin usbtty"


> I have a USB-RS232 cable to convert the USB port into a RS232 port. Do I
> need any driver? What environment variable shall I set?

If you want to attach the cable to a USB port on the target that runs
U-Boot, you obviously  need  the  matching  usbtty  driver  for  your
hardware.


Best regards,

Wolfgang Denk

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