ASB100_REG_VID_FANDIV
reg = asb100_read_value(client, ASB100_REG_VID_FANDIV);
asb100_write_value(client, ASB100_REG_VID_FANDIV, reg);
reg = asb100_read_value(client, ASB100_REG_VID_FANDIV);
asb100_write_value(client, ASB100_REG_VID_FANDIV, reg);
i = asb100_read_value(client, ASB100_REG_VID_FANDIV);