eng_crtc_set_timing
head2_set_timing = (crtc_set_timing) eng_crtc_set_timing;
head1_set_timing = (crtc_set_timing) eng_crtc_set_timing;
status_t eng_crtc_set_timing(display_mode target);
head2_set_timing = (crtc_set_timing) eng_crtc_set_timing;
head1_set_timing = (crtc_set_timing) eng_crtc_set_timing;
status_t eng_crtc_set_timing(display_mode target);