Provided by:
linux-doc-2.6.15_2.6.15-23.39_all 
NAME
fb_find_best_mode - find best matching videomode
SYNOPSIS
struct fb_videomode * fb_find_best_mode (struct fb_var_screeninfo * var,
struct list_head * head);
ARGUMENTS
var pointer to struct fb_var_screeninfo
head pointer to struct list_head of modelist
RETURNS
struct fb_videomode, NULL if none found
IMPORTANT
This function assumes that all modelist entries in info->modelist are
valid.
NOTES
Finds best matching videomode which has an equal or greater dimension
than var->xres and var->yres. If more than 1 videomode is found, will
return the videomode with the highest refresh rate