C++ (Cpp) masterEnable示例

示例#1

文件： CompassSensor.IIO.primary.cpp 项目： MIPS/hardware-invensense

/**
 *  @brief        This function will enable/disable sensor.
 *  @param[in]    handle
 *                  which sensor to enable/disable.
 *  @param[in]    en
 *                  en=1, enable; 
 *                  en=0, disable
 *  @return       if the operation is successful.
 */
int CompassSensor::enable(int32_t handle, int en) 
{
    VFUNC_LOG;

    mEnable = en;
    int tempFd;
    int res = 0;

    /* reset master enable */
    res = masterEnable(0);
    if (res < 0) {
        return res;
    }

    if (en) {
        LOGV_IF(SYSFS_VERBOSE, "HAL:sysfs:echo %d > %s (%lld)",
                en, compassSysFs.compass_x_fifo_enable, getTimestamp());
        res = write_sysfs_int(compassSysFs.compass_x_fifo_enable, en);
        LOGV_IF(SYSFS_VERBOSE, "HAL:sysfs:echo %d > %s (%lld)",
                en, compassSysFs.compass_y_fifo_enable, getTimestamp());
        res += write_sysfs_int(compassSysFs.compass_y_fifo_enable, en);
        LOGV_IF(SYSFS_VERBOSE, "HAL:sysfs:echo %d > %s (%lld)",
                en, compassSysFs.compass_z_fifo_enable, getTimestamp());
        res += write_sysfs_int(compassSysFs.compass_z_fifo_enable, en);

        res = masterEnable(en);
        if (res < en) {
            return res;
        }
    }

    return res;
}

示例#2

文件： CompassSensor.IIO.primary.cpp 项目： pine64-android/device-softwinner

/**
 *  @brief        This function will enable/disable sensor.
 *  @param[in]    handle
 *                  which sensor to enable/disable.
 *  @param[in]    en
 *                  en=1, enable; 
 *                  en=0, disable
 *  @return       if the operation is successful.
 */
int CompassSensor::enable(int32_t handle, int en) 
{
    VFUNC_LOG;

    mEnable = en;
    int tempFd;
    int res = 0;

    /* reset master enable */
    res = masterEnable(0);
    if (res < 0) {
        return res;
    }

    if (en) {
        LOGV_IF(SYSFS_VERBOSE, "HAL:sysfs:echo %d > %s (%lld)", 
                en, compassSysFs.compass_x_fifo_enable, getTimestamp());
        tempFd = open(compassSysFs.compass_x_fifo_enable, O_RDWR);
        res = errno;
        if (tempFd > 0) {
            res = enable_sysfs_sensor(tempFd, en);
        } else {
            LOGE("HAL:open of %s failed with '%s' (%d)",
                 compassSysFs.compass_x_fifo_enable, strerror(res), res);
        }

        LOGV_IF(SYSFS_VERBOSE, "HAL:sysfs:echo %d > %s (%lld)", 
                en, compassSysFs.compass_y_fifo_enable, getTimestamp());
        tempFd = open(compassSysFs.compass_y_fifo_enable, O_RDWR);
        res = errno;
        if (tempFd > 0) {
            res = enable_sysfs_sensor(tempFd, en);
        } else {
            LOGE("HAL:open of %s failed with '%s' (%d)",
                 compassSysFs.compass_y_fifo_enable, strerror(res), res);
        }

        LOGV_IF(SYSFS_VERBOSE, "HAL:sysfs:echo %d > %s (%lld)", 
                en, compassSysFs.compass_z_fifo_enable, getTimestamp());
        tempFd = open(compassSysFs.compass_z_fifo_enable, O_RDWR);
        res = errno;
        if (tempFd > 0) {
            res = enable_sysfs_sensor(tempFd, en);
        } else {
            LOGE("HAL:open of %s failed with '%s' (%d)",
                 compassSysFs.compass_z_fifo_enable, strerror(res), res);
        }

        res = masterEnable(en);
        if (res < en) {
            return res;
        }
    }

    return res;
}