prev_status = devc->ovp_enabled;
devc->ovp_enabled = status_byte & (1 << 7);
devc->ovp_enabled_changed = devc->ovp_enabled != prev_status;
prev_status = devc->ovp_enabled;
devc->ovp_enabled = status_byte & (1 << 7);
devc->ovp_enabled_changed = devc->ovp_enabled != prev_status;