Tom Sylla tsylla at gmail.com
Sun Nov 19 16:04:01 CET 2006

Peter Stuge wrote:
> On Sun, Nov 19, 2006 at 02:33:00PM +0100, Stefan Reinauer wrote:
>> * Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net> [061119 01:52]:
>>> Abit KN9 Ultra has NO serial port! This makes debugging really hard.
>> Does it have a USB2 port with debug capability?
> Please run
> lspci -vs $(lspci|grep EHCI|cut -f1 -d' ')
> lspci -ns $(lspci|grep EHCI|cut -f1 -d' ')
> on a board with the MCP55 and send the output to me, the list or
> add it to the wiki page http://linuxbios.org/EHCI_Debug_Port

There is an lspci dump from a K9N ultra at:

It looks like the MCP55 has an EHCI with debug port:

00:02.1 USB Controller: nVidia Corporation MCP55 USB Controller (rev a2) 
(prog-if 20 [EHCI])
        Subsystem: ABIT Computer Corp. Unknown device 1c24
        Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 58
        Memory at fe02e000 (32-bit, non-prefetchable) [size=256]
        Capabilities: [44] Debug port
        Capabilities: [80] Power Management version 2

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