RJ54N1_MIRROR_STILL_MODE
data = reg_set(client, RJ54N1_MIRROR_STILL_MODE, 0, 1);
data = reg_set(client, RJ54N1_MIRROR_STILL_MODE, 1, 1);
data = reg_set(client, RJ54N1_MIRROR_STILL_MODE, 0, 2);
data = reg_set(client, RJ54N1_MIRROR_STILL_MODE, 2, 2);
ret = reg_write(client, RJ54N1_MIRROR_STILL_MODE, 0x27);