saa7127_read
reg->val = saa7127_read(sd, reg->reg & 0xff);
if ((saa7127_read(sd, 0) & 0xe4) != 0 ||
(saa7127_read(sd, 0x29) & 0x3f) != 0x1d) {
read_result = saa7127_read(sd, SAA7129_REG_FADE_KEY_COL2);
if (saa7127_read(sd, SAA7129_REG_FADE_KEY_COL2) == 0xaa) {