On Fri, Dec 01, 2006 at 10:55:48AM -0800, Lu, Yinghai wrote:
> -----Original Message-----
> From: Greg KH [mailto:[email protected]]
>
> >I can do that in about 15 minutes if you give me the device ids for the
> >usb debug device that you wish to have.
>
> >Or you can also use the generic usb-serial driver today just fine with
> >no modification. Have you had a problem with using that option?
>
> We are talking about using USB debug device/EHCI debug port in LinuxBIOS
> in legacy free PC.
> Because one AM2+MCP55 MB doesn't have serial port.
>
> I guess Eric is working on USB debug device/EHCI debug port for
> earlyprintk or printk.
Well, earlyprintk will not work, as you need PCI up and running.
And I have some code that barely works for this already, perhaps Eric
and I should work together on this :)
> So we need one client program on host side. So it would great if we
> could use current USB stack for
> the clients on system even without debug port.
Yes, that will work just fine today using the usb-serial generic driver.
I'll knock up a "real" driver for the device later today and send it to
Linus, as it's trivial to do so, and will make it simpler than using the
module parameters.
thanks,
greg k-h
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