ks108_writeb_ctl
ks108_writeb_ctl(par, chipindex, KS_SET_DPY_START_LINE|y);
ks108_writeb_ctl(par, chipindex, KS_SET_PAGE_NUM|y);
ks108_writeb_ctl(par, chipindex, KS_SET_X|x);
ks108_writeb_ctl(par, i, KS_DPY_OFF);
ks108_writeb_ctl(par, i, KS_DPY_ON);