adv7511_cec_read
return adv7511_cec_write(sd, reg, (adv7511_cec_read(sd, reg) & mask) | val);
reg->val = adv7511_cec_read(sd, reg->reg & 0xff);
if ((adv7511_cec_read(sd, 0x11) & 0x01) == 0) {
nack_cnt = adv7511_cec_read(sd, 0x14) & 0xf;
low_drive_cnt = adv7511_cec_read(sd, 0x14) >> 4;
msg.len = adv7511_cec_read(sd, 0x25) & 0x1f;
msg.msg[i] = adv7511_cec_read(sd, i + 0x15);