After rebuilding kernel, No keyboard present

dwhitney67 · 09-28-2007, 11:35 AM

Hello,

I have been fidgeting with the configuration of the Linux Kernel source (version 2.6.20.1) in the attempts to generate a smaller footprint.

I have now lost keyboard support.

I have the following Kernel "Input Device Driver" options set as follows:

PHP Code:



# 
# Input Device Drivers 
# 
CONFIG_INPUT_KEYBOARD=y 
CONFIG_KEYBOARD_ATKBD=y 
# CONFIG_KEYBOARD_SUNKBD is not set 
# CONFIG_KEYBOARD_LKKBD is not set 
# CONFIG_KEYBOARD_XTKBD is not set 
# CONFIG_KEYBOARD_NEWTON is not set 
# CONFIG_KEYBOARD_STOWAWAY is not set 
CONFIG_INPUT_MOUSE=y 
CONFIG_MOUSE_PS2=y 
# CONFIG_MOUSE_SERIAL is not set 
# CONFIG_MOUSE_INPORT is not set 
# CONFIG_MOUSE_LOGIBM is not set 
# CONFIG_MOUSE_PC110PAD is not set 
# CONFIG_MOUSE_VSXXXAA is not set 
# CONFIG_INPUT_JOYSTICK is not set 
# CONFIG_INPUT_TOUCHSCREEN is not set 
CONFIG_INPUT_MISC=y 
# CONFIG_INPUT_PCSPKR is not set 
# CONFIG_INPUT_WISTRON_BTNS is not set 
# CONFIG_INPUT_UINPUT is not set

I am using a US PS2-style keyboard. I obviously haven't configured everything correct with respect to the Keyboard. Is there another section within the Kernel configuration I should enable (or define to be built as a module) to get my keyboard working again?

BTW, this is not an X11 thing. The problem occurs when I boot directly into a busybox ash shell after startup. The keyboard works fine during the Grub stage.

Here's the only kernel message I have been able to collect:

serio: i8042 KBD port at 0x60,0x64 irq 1

raskin · 09-28-2007, 01:58 PM

USB keyboard is a USB Human Interaction Device (CONFIG_USB_HID)..

dwhitney67 · 09-28-2007, 02:31 PM

Quote:

Originally Posted by raskin

USB keyboard is a USB Human Interaction Device (CONFIG_USB_HID)..

Is this configuration option applicable when my keyboard is not a USB keyboard? My keyboard has the PS2 connector and is connected to the PS2 serial port on the computer.

Are there any serial port options that I may have missed? I am also having problems with the other serial ports (/dev/ttyS4 and /dev/ttyS5).

P.S. I suppose it doesn't hurt to enable the CONFIG_USB_HID.

raskin · 09-28-2007, 02:53 PM

Sorry, misread US as USB - didn't expect first at all (it nearly never does any difference). CONFIG_SERIO_I8042, CONFIG_SERIO_SERPORT, CONFIG_SERIO_PCIPS2, CONFIG_SERIO_LIBPS2 ?

dwhitney67 · 09-28-2007, 06:42 PM

Thanks raskin! I adjusted my config file accordingly and now I once again have keyboard support.