Re: [PATCH] Making keyboard/mouse drivers dependent on CONFIG_EMBEDDED

[Vojtech Pavlik]

On Sat, Jun 07, 2003 at 08:34:24AM +0200, Andi Kleen wrote:
> 
> I finally got sick of seeing bug reports from people who did not enable
> CONFIG_VT or forgot to enable the obscure options for the keyboard
> driver. This is especially a big problem for people who do make oldconfig
> with a 2.4 configuration, but seems to happen in general often.
> I also included the PS/2 mouse driver. It is small enough and a useful
> fallback on any PC.
> 
> This patch wraps all this for i386/amd64 in CONFIG_EMBEDDED. If 
> CONFIG_EMBEDDED is not defined they are not visible and always enabled.
> 
> I only tried to give good defaults for PC type of hardware. So far 
> the assumption is that people running other architectures know how 
> to configure a kernel.
> 
> I also included VGA_CONSOLE with this. Arguably a lot of people use
> fbcon now, but having vga console compiled in too as a fallback doesn't hurt.
> 
> Hopefully this will fix one of the major FAQs on linux-kernel.

I'm quite OK with this, but I'd like it to give a pointer where to
disable EMBEDDED, and also give a possibility to do it other than
editing .config manually.

> diff -u linux-2.5.70/drivers/char/Kconfig-KCONFIG linux-2.5.70/drivers/char/Kconfig
> --- linux-2.5.70/drivers/char/Kconfig-KCONFIG	2003-05-08 04:52:43.000000000 +0200
> +++ linux-2.5.70/drivers/char/Kconfig	2003-06-06 23:46:52.000000000 +0200
> @@ -5,8 +5,9 @@
>  menu "Character devices"
>  
>  config VT
> -	bool "Virtual terminal"
> +	bool "Virtual terminal" if EMBEDDED
>  	requires INPUT=y
> +	default y
>  	---help---
>  	  If you say Y here, you will get support for terminal devices with
>  	  display and keyboard devices. These are called "virtual" because you
> @@ -35,8 +36,9 @@
>  	  shiny Linux system :-)
>  
>  config VT_CONSOLE
> -	bool "Support for console on virtual terminal"
> +	bool "Support for console on virtual terminal" if EMBEDDED
>  	depends on VT
> +	default y
>  	---help---
>  	  The system console is the device which receives all kernel messages
>  	  and warnings and which allows logins in single user mode. If you
> diff -u linux-2.5.70/drivers/input/keyboard/Kconfig-KCONFIG linux-2.5.70/drivers/input/keyboard/Kconfig
> --- linux-2.5.70/drivers/input/keyboard/Kconfig-KCONFIG	2003-03-28 18:32:22.000000000 +0100
> +++ linux-2.5.70/drivers/input/keyboard/Kconfig	2003-06-06 23:46:51.000000000 +0200
> @@ -2,7 +2,7 @@
>  # Input core configuration
>  #
>  config INPUT_KEYBOARD
> -	bool "Keyboards"
> +	bool "Keyboards" if (X86 && EMBEDDED) || (!X86)
>  	default y
>  	depends on INPUT
>  	help
> @@ -12,7 +12,7 @@
>  	  If unsure, say Y.
>  
>  config KEYBOARD_ATKBD
> -	tristate "AT keyboard support"
> +	tristate "AT keyboard support" if (X86 && EMBEDDED) || (!X86) 
>  	default y
>  	depends on INPUT && INPUT_KEYBOARD && SERIO
>  	help
> diff -u linux-2.5.70/drivers/input/serio/Kconfig-KCONFIG linux-2.5.70/drivers/input/serio/Kconfig
> --- linux-2.5.70/drivers/input/serio/Kconfig-KCONFIG	2003-03-28 18:32:22.000000000 +0100
> +++ linux-2.5.70/drivers/input/serio/Kconfig	2003-06-06 23:56:20.000000000 +0200
> @@ -19,7 +19,7 @@
>  	  as a module, say M here and read <file:Documentation/modules.txt>.
>  
>  config SERIO_I8042
> -	tristate "i8042 PC Keyboard controller"
> +	tristate "i8042 PC Keyboard controller" if (X86 && EMBEDDED) || (!X86)
>  	default y
>  	depends on SERIO
>  	---help---
> diff -u linux-2.5.70/drivers/input/Kconfig-KCONFIG linux-2.5.70/drivers/input/Kconfig
> --- linux-2.5.70/drivers/input/Kconfig-KCONFIG	2003-02-10 19:37:58.000000000 +0100
> +++ linux-2.5.70/drivers/input/Kconfig	2003-06-06 23:44:32.000000000 +0200
> @@ -5,7 +5,7 @@
>  menu "Input device support"
>  
>  config INPUT
> -	tristate "Input devices (needed for keyboard, mouse, ...)"
> +	tristate "Input devices (needed for keyboard, mouse, ...)" if EMBEDDED
>  	default y
>  	---help---
>  	  Say Y here if you have any input device (mouse, keyboard, tablet,
> @@ -27,7 +27,7 @@
>  comment "Userland interfaces"
>  
>  config INPUT_MOUSEDEV
> -	tristate "Mouse interface"
> +	tristate "Mouse interface" if EMBEDDED
>  	default y
>  	depends on INPUT
>  	---help---
> @@ -45,7 +45,7 @@
>  	  a module, say M here and read <file:Documentation/modules.txt>.
>  
>  config INPUT_MOUSEDEV_PSAUX
> -	bool "Provide legacy /dev/psaux device"
> +	bool "Provide legacy /dev/psaux device" if EMBEDDED
>  	default y
>  	depends on INPUT_MOUSEDEV
>  
> diff -u linux-2.5.70/drivers/video/console/Kconfig-KCONFIG linux-2.5.70/drivers/video/console/Kconfig
> --- linux-2.5.70/drivers/video/console/Kconfig-KCONFIG	2003-03-28 18:32:25.000000000 +0100
> +++ linux-2.5.70/drivers/video/console/Kconfig	2003-06-07 08:23:50.000000000 +0200
> @@ -5,8 +5,9 @@
>  menu "Console display driver support"
>  
>  config VGA_CONSOLE
> -	bool "VGA text console"
> +	bool "VGA text console" if (EMBEDDED && X86) || (!X86)
>  	depends on !ARCH_ACORN && !ARCH_EBSA110 || !4xx && !8xx
> +	default y
>  	help
>  	  Saying Y here will allow you to use Linux in text mode through a
>  	  display that complies with the generic VGA standard. Virtually

-- 
Vojtech Pavlik
SuSE Labs, SuSE CR