[ipxe-devel] suggestion for improvement - USB Logging/Debug

[Petry Roman, SHS-S IT-TS]

8-)...
Nice try to get such a device 8-)..
 if i understand the linux ehci gadget debug module rught, itwill make your normal linux pc to a compatible debug device..
 so just take your pc or raspberry pi and connect it via usb to the normal legacy pc you want to debug, and it should work..

Bye
roman

-----Ursprüngliche Nachricht-----
Von: Michael Brown [mailto:mbrown at fensystems.co.uk] 
Gesendet: Donnerstag, 7. November 2013 17:12
An: Petry Roman, SHS-S IT-TS
Cc: ipxe-devel at lists.ipxe.org
Betreff: Re: [ipxe-devel] suggestion for improvement - USB Logging/Debug

On 06/11/13 15:47, Petry Roman, SHS-S IT-TS wrote:
> Hello, just a suggestion for a feature to implement: EHCI Debug Port
>
> As more and more pc´s are legacy free.. so no serial port for debuging,
>   this could be interesting,
>
> http://www.coreboot.org/EHCI_Debug_Port
>
> It is already used in the linux kernel and there is also a linux 
> module that acts as a debug monitor/device on the other side.
>
> https://www.kernel.org/doc/Documentation/x86/earlyprintk.txt and 
> http://www.coreboot.org/EHCI_Gadget_Debug

Sounds interesting and useful.  It looks as though the actual hardware is relatively expensive (~US$100 for a NET20DC).  If anyone wants to donate me one of these (or find me a cheaper supply), I'll happily implement this feature.

Michael