How to write to screen with framebuffer?

Hi, all

I have compiled the uClinux and run it on my board successfully. Now I need
run a program which is to write some picture to LCD screen. So, I recompiled
the uClinux with the following kernel configuration:

Character devices
    --> Virtual Terminals

Console drivers
	--> Support Frame buffer devices
	--> Frame-buffer support
		--> Support for frame buffer devices
			--> S3C44B0X LCD support
			--> Advanced low level driver options
				--> 2 bpp packed pixels support
				--> 4 bpp packed pixels support
				--> 8 bpp packed pixels support
				--> 16 bpp packed pixels support
				--> 32 bpp packed pixels support
			--> Select compiled-in fonts
				--> VGA 8*8 font
				--> VGA 8*16 font

After the uClinux booting, a penguin logo displayed on the LCD screen. So, I
think the framebuffer driver must work well. But, when I run a program to
write the LCD screen directly, there is no picture displayed at all. I think
when the LCD is used as virtual terminal, the picture may not be displayed.

So, I want to use the framebuffer driver without the virtual terminal
support. Is there any way to achieve the goal? Thanks!



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