Re: [coreboot] USB debug cables and emulation

[Joseph Smith]

> > I read somewhere you could make one, but I don't know how difficult that
> > would be. I was always wondering if you could just use two USB -> Serial
> > adapters with a null modem cable in the middle??
>
> Nope, won't work. You need a USB device that explicitly understands USB 
> debug mode. In this mode you don't have to set up the BARs (ie no memory 
> required) to talk USB.

This guy was able to get it working with one USB -> Serial adapter
(reversed) on an iMac (with ICH7) using Solaris as the host:

http://blogs.sun.com/szhou/entry/solaris_on_efi_imac