Re: installation problem
Power-ON step, BIOS screens:
USB keyboard worked regardless of bios setting
Lilo prompt:
Needed USB keyboard support in the bios, else no input chars.
From here down, USB keyboard support enabled in the bios.
Kernel loading:
I have made a kernel with USB keyboard support compiled in
I don't know the difference between CONFIG_USB_UHCI{,_ALT}, but they
are possible interchangable, UHCI* is for some usb controllers,
OHCI is for some other.
$ diff config-2.2.19-[23]
541c541
< CONFIG_USB=m
---
> CONFIG_USB=y
545,547c545,546
< CONFIG_USB_UHCI=m
< CONFIG_USB_UHCI_ALT=m
< CONFIG_USB_OHCI=m
---
> CONFIG_USB_UHCI=y
> CONFIG_USB_OHCI=y
554,558c553,555
< CONFIG_USB_HID=m
< CONFIG_USB_KBD=m
< CONFIG_USB_MOUSE=m
< CONFIG_INPUT_KEYBDEV=m
< CONFIG_INPUT_MOUSEDEV=m
---
> CONFIG_USB_HID=y
> CONFIG_INPUT_KEYBDEV=y
> CONFIG_INPUT_MOUSEDEV=y
The USB support is initialized late in the kernel startup.
I have not tested ^S or ^Q, but they are possible unavilable till USB
is initialized.
System running:
Kernel-2.2.19-2:
No reaction from USB keyboard (no PS/2 keyboard connected, I did
not test what happens when both connected).
Kernel-2.2.19-3:
I had no problem using it with a USB keyboard, or a PS/2 keyboard.
When both USB and PS/2 keyboard was connected I could use both.
The downside with using a USB keyboard is that USB steals an
intterupt (the PS/2 keyboard does that to, but it seems hardwired
to irq 1 and unavailable for other use).
Regards,
/Karl
PS.
With two keyboards/mice/monitors, the computer can serve two users
i X, some minor patching was needed (I have not tested this
myself), ref. http://cambuca.ldhs.cetuc.puc-rio.br/multiuser.
-----------------------------------------------------------------------
Karl Hammar Aspö Data karl@kalle.csb.ki.se
Lilla Aspö 2340 +46 173 140 57 Networks
S-742 94 Östhammar +46 10 270 26 67 Computers
Sweden Consulting
-----------------------------------------------------------------------
From: Adam Di Carlo <adam@onshore.com>
Subject: Re: installation problem
Date: 01 Jun 2001 14:32:35 -0400
> Karl Hammar <karl@kalle.csb.ki.se> writes:
>
> > The other issue is if the boot-floppies should be able to use a
> > usb-keyboard.
>
> I think the answer here is "yes, if possible".
>
> I have CC'd Herbert Xu, the i386 kernel images maintainer.
>
> > According to kernel_source/Documentation/usb/input.txt:
> >
> > 2. Simple Usage
> > ~~~~~~~~~~~~~~~
> > For the most usual configuration, with one USB mouse and one
> > USB keyboard, you'll have to load the following modules (or have
> > them built in to the kernel):
> >
> > input.o
> > mousedev.o
> > keybdev.o
> > usbcore.o
> > usb-[uo]hci.o
> > hid.o
> >
> > After this, the USB keyboard will work straight away, and the USB mouse
> > will be available as a character device on major 13, minor 63:
>
> > To be able to use it at boot we will need to compile thoose in, or
> > load them without user intervention.
>
> Can't we compile in just enough for the keyboard?
>
> Is this kernel 2.2 or 2.4? We're still using 2.2 on i386.
>
> >
> > Keyboard support seems to be built as a module
> >
> > $ grep USB_KBD 2.2.25-2001-05-12/kernel-config
> > CONFIG_USB_KBD=m
> >
> > I don't know what will happen if it is compiled in and you have a
> > standard keyboard, but I might be able to test it in the weekend.
>
> A very good question.
>
> --
> .....Adam Di Carlo....adam@onshore.com.....<URL:http://www.onshored.com/>
Reply to: