fbmem.c compile problem

fbmem.c compile problem

[Frank]

I am trying to get framebuffer support compiled into the kernel
(2.4.28) before I compile and install directfb, but I am having
a problem I can't seem to solve. I am getting the following
error when I try to compile fb support into the kernel:
/drivers/char/mem.c:747: undefined reference to `fbmem_init'

I have what I think i need enabled in my .config file:

# 
# Console drivers
#
CONFIG_VGA_CONSOLE=y
#
# Frame-buffer support
#
CONFIG_FB=y
CONFIG_DUMMY_CONSOLE=y
# CONFIG_FB_VOYAGER is not set
# CONFIG_FB_MB86290 is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_CLGEN is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_CT65550 is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_S3TRIO is not set
CONFIG_FB_VESA=y
# CONFIG_FB_VGA16 is not set
# CONFIG_FB_LYNX is not set
# CONFIG_FB_SM712 is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_ATY is not set
CONFIG_FB_RADEON=y
# CONFIG_FB_ATY128 is not set

Can someone shed some light on why, although I have CONFIG_FB
set
to 'y' the makefile won't compile drivers/video/fbmem.c

I am on a very tight schedule and any help would be greatly 
appreciated....


	
		
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Re: fbmem.c compile problem

[Sam Song]

Frank <frannk_m1@yahoo.com> wrote：

> # 
> # Console drivers
> #
> CONFIG_VGA_CONSOLE=y
> #
> # Frame-buffer support
> #
> CONFIG_FB=y
> CONFIG_DUMMY_CONSOLE=y
> # CONFIG_FB_VOYAGER is not set
> # CONFIG_FB_MB86290 is not set
> # CONFIG_FB_RIVA is not set
> # CONFIG_FB_CLGEN is not set
> # CONFIG_FB_PM2 is not set
> # CONFIG_FB_PM3 is not set
> # CONFIG_FB_CYBER2000 is not set
> # CONFIG_FB_CT65550 is not set
> # CONFIG_FB_IMSTT is not set
> # CONFIG_FB_S3TRIO is not set
> CONFIG_FB_VESA=y
> # CONFIG_FB_VGA16 is not set
> # CONFIG_FB_LYNX is not set
> # CONFIG_FB_SM712 is not set
> # CONFIG_FB_MATROX is not set
> # CONFIG_FB_ATY is not set
> CONFIG_FB_RADEON=y
> # CONFIG_FB_ATY128 is not set

It seems that you haven't enabled enough configuration
about framebuffer support. Following is the my extra
LCD kernel configuration on 2.4.18. Just a reference.

#
# Frame-buffer support
#
CONFIG_FBCON_ADVANCED=y
CONFIG_FBCON_CFB8=y
CONFIG_FBCON_FONTS=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y

=====
Best regards,

Sam

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