[LinuxBIOS] USB Support
stepan at coresystems.de
Fri Jul 7 15:25:19 CEST 2006
* Ronald G Minnich <rminnich at lanl.gov> [060703 22:45]:
> yes, but ... that's how it goes. Very few people want to see linuxbios
We do. But after our job is done, it should not be visible, indeed.
> Many years ago I did an experiment, and was able to set things up so
> that linuxbios log buffer was picked up by the kernel, so you could do a
> dmesg and see linuxbios messages. I think this might be useful to revive.
Do you have a pointer on this one? It indeed sounds very useful.
> I just don't see us putting a fully capable usb stack into linuxbios, it
> will not work as well as the linux usb stack.
Not a USB stack. That would be crap, and it would not work.
Eric pointed this out and I did not even notice what he was saying:
EHCI has a workaround method called the "USB2 Debug port for legacy
This debug port can be used by simple inb/outb sequences, not more
complex than serial io.
According to this document
what you need is a debug device, which mostly looks like a usb style
null modem cable. No idea where to get this hardware though.
coresystems GmbH • Brahmsstr. 16 • D-79104 Freiburg i. Br.
Tel.: +49 761 7668825 • Fax: +49 761 7664613
Email: info at coresystems.de • http://www.coresystems.de/
More information about the coreboot