LCCR0_Dual
if ((fbi->lccr0 & LCCR0_SDS) == LCCR0_Dual)
inf->lccr0 = (inf->lccr0 & ~LCCR0_SDS) | LCCR0_Dual;
(inf->lccr0 & LCCR0_SDS) == LCCR0_Dual)
if (fbi->inf->lccr0 & LCCR0_Dual)
(fbi->reg_lccr0 & (LCCR0_Dual|LCCR0_Act)) != 0) {
(fbi->reg_lccr0 & (LCCR0_Dual|LCCR0_Act)) == LCCR0_Dual)