fbdev
Driver for Linux framebuffer device based video chips
fbdev is a video driver based on fb
source
fbdev.c
1. init card : open dev/fb0 and set attr;
2. init screen : set screen attr
3. init randr
fbinit.c
1. initcard
2. initinput
3. initoutput
kdrive.c
关键函数：KdInitOutput
kaa.c
关键函数：kaadrawinit, copy, solid, fill