OA_TC6_REG_CONFIG0
ret = oa_tc6_read_register(tc6, OA_TC6_REG_CONFIG0, ®val);
return oa_tc6_write_register(tc6, OA_TC6_REG_CONFIG0, regval);
ret = oa_tc6_read_register(tc6, OA_TC6_REG_CONFIG0, &value);
return oa_tc6_write_register(tc6, OA_TC6_REG_CONFIG0, value);