BKTR_SAT_U_LO
OUTB(bktr, BKTR_SAT_U_LO, (temp << 1) & 0xff);
OUTB(bktr, BKTR_SAT_U_LO, (u_char)(tmp_int & 0xff));
OUTB(bktr, BKTR_SAT_U_LO, (u_char)(tmp_int & 0xff));
tmp_int = (int)INB(bktr, BKTR_SAT_U_LO) & 0xff;