ARK-OS/arkos/system/fb_helper.c

#include <sys/ioctl.h>
#include <linux/fb.h>

int get_vinfo(int fd, struct fb_var_screeninfo *vinfo) {
    return ioctl(fd, FBIOGET_VSCREENINFO, vinfo);
}

int get_finfo(int fd, struct fb_fix_screeninfo *finfo) {
    return ioctl(fd, FBIOGET_FSCREENINFO, finfo);
}

int pan_display(int fd, struct fb_var_screeninfo *vinfo) {
    return ioctl(fd, FBIOPAN_DISPLAY, vinfo);
}