[coreboot] USB debug cables and emulation

[Joseph Smith]

On Thu, 26 Jun 2008 19:06:08 +0200, Carl-Daniel Hailfinger
<c-d.hailfinger.devel.2006 at gmx.net> wrote:
> On 26.06.2008 18:48, Joseph Smith wrote:
>>>> 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
>>
> 
> The blog entry explicitly states that it didn't work.
> 
Than you did not read all of it. At the end"I was finally able to get
console output on the iMac"

-- 
Thanks,
Joseph Smith
Set-Top-Linux
www.settoplinux.org