How to check debug message from adf_os_print()?

[Linus Lüssing]

Hi Eric Liu,

On Fri, Jan 17, 2014 at 12:13:53PM -0500, Xiaoyi Liu wrote:
> Hi there,
> 
> I'm modifying the firmware source for my *TL_WN821N* usb adapter, and I'm
> trying to use *adf_os_print()* to print out the debug message. Where can I
> find the debug message on my Linux?
> 
> Thanks!
> -Eric Liu

I was wondering about how adf_os_print() works a while ago, too.
See my questions and Oleksij's answers in December.

What you need to do: Buy a serial console and solder it to one
PIN, the UART-TX one, on the chip of your usb adapter.

You can find the correct PIN on wikidevi.

All this worked like a charm for me (after someone else did the
soldering job for me...).

Cheers, Linus