[Linux-ia64] [patch] kdb-v2.1-2.4.18-ia64-usb-keyboard

[Linux-ia64] [patch] kdb-v2.1-2.4.18-ia64-usb-keyboard

[Sebastien Lelarge]

Hello list,

I'm student in France and I'm working on IA64 machines by BULL 
in France. We had a problem using KDB on Tiger machine because of the
lack of PS/2 port on this machine. In order to bring a solution, I
have written some code to bring USB support in KDB. I'm using a RedHat 
7.2. You must apply this patch after the 2 KDB patches. It provides an 
option called "Support for USB Keyboard in KDB" in Kernel Hacking
section. 

For now, it supports the usb-uhci driver for the USB controller. 
and supports the two USB keyboard drivers (hid and usbkbd) used by
RedHat.

Notice that you won't be able to use your USB Keyboard before USB
subsystem is started. But it's a solution to debug a system running.

You can download it at
ftp://oss.sgi.com/www/projects/kdb/download/v2.1/kdb-v2.1-2.4.18-ia64-usb-keyboard-2.bz2

For now, it works on kernel 2.4.18 with all recent patches. If you
have remarks, please reply adding kdb@oss.sgi.com in copy of your mail.

Thanks
-- 
LELARGE Sebastien			            
BULL S.A - Linux IA64 Team    mailto:sebastien.lelarge@bull.net
38000 Echirolles

Re: [Linux-ia64] [patch] kdb-v2.1-2.4.18-ia64-usb-keyboard

[Andreas Schwab]

Sebastien Lelarge <Sebastien.Lelarge@bull.net> writes:

|> Notice that you won't be able to use your USB Keyboard before USB
|> subsystem is started. But it's a solution to debug a system running.

Another solution is to use a serial console.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nürnberg
Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."

Re: [Linux-ia64] [patch] kdb-v2.1-2.4.18-ia64-usb-keyboard

[David Mosberger]

>>>>> On Thu, 04 Jul 2002 10:03:50 +0200, Andreas Schwab <schwab@suse.de> said:

  Andreas> Sebastien Lelarge <Sebastien.Lelarge@bull.net> writes:

  Sebastien> Notice that you won't be able to use your USB Keyboard
  Sebastien> before USB is started. But it's a solution to
  Sebastien> debug a system running.

  Andreas> Another solution is to use a serial console.

The hp zx1-based machines are legacy-free, so there is no old-fashion
serial port.  Instead, the serial ports can be found via ACPI.  In the
current machines, they're in memory-mapped I/O space.  I have a kdb
patch to support this and will send it out soon (it needs a bit of
cleaning up).

	--david

Re: [Linux-ia64] [patch] kdb-v2.1-2.4.18-ia64-usb-keyboard

[Matthew Wilcox]

On Mon, Jul 08, 2002 at 11:31:04AM -0700, David Mosberger wrote:
> The hp zx1-based machines are legacy-free, so there is no old-fashion
> serial port.  Instead, the serial ports can be found via ACPI.  In the
> current machines, they're in memory-mapped I/O space.  I have a kdb
> patch to support this and will send it out soon (it needs a bit of
> cleaning up).

Using the HCDP table, I hope?  Not all the zx1-based machines have serial
ports in the ACPI namespace.

-- 
Revolutions do not require corporate support.

Re: [Linux-ia64] [patch] kdb-v2.1-2.4.18-ia64-usb-keyboard

[David Mosberger]

>>>>> On Tue, 9 Jul 2002 13:40:00 +0100, Matthew Wilcox <willy@debian.org> said:

  Matthew> On Mon, Jul 08, 2002 at 11:31:04AM -0700, David Mosberger
  Matthew> wrote:
  >> The hp zx1-based machines are legacy-free, so there is no
  >> old-fashion serial port.  Instead, the serial ports can be found
  >> via ACPI.  In the current machines, they're in memory-mapped I/O
  >> space.  I have a kdb patch to support this and will send it out
  >> soon (it needs a bit of cleaning up).

  Matthew> Using the HCDP table, I hope?  Not all the zx1-based
  Matthew> machines have serial ports in the ACPI namespace.

It shouldn't matter.  The kdb code doesn't know where the info comes
from.  The necessary info just gets stowed away when the serial driver
initializes.  Having said that, the firmware I tested it with doesn't
have the HCDP tables, so it might be good to verify that such configs
really do work as well.

	--david