Hi3518ev300 在HI_MIPI_ENABLE_SENSOR_CLOCK 时失败，报错：__osal_unlocked_ioctl - Input param err,it is null!

Question

初始化代码如下：

static int hal_mipi_init(void)
{
    int fd = open("/dev/hi_mipi", O_RDWR);
    if (fd < 0) {
        ERROR_LOG("open hi_mipi dev fail\n");
        return HLE_RET_EIO;
    }
    int s32Ret;


    lane_divide_mode_t enHsMode = LANE_DIVIDE_MODE_0;
    s32Ret = ioctl(fd, HI_MIPI_SET_HS_MODE, &enHsMode);  //LANE_DIVIDE_MODE_0
    if (HI_SUCCESS != s32Ret)
    {
        ERROR_LOG("HI_MIPI_SET_HS_MODE failed\n");
        return HLE_RET_EIO;
    }


    s32Ret = ioctl(fd, HI_MIPI_ENABLE_MIPI_CLOCK, &mipiDevAttr[sns].devno);
    if (HI_SUCCESS != s32Ret)
    {
        ERROR_LOG("MIPI_ENABLE_CLOCK %d failed\n",mipiDevAttr[sns].devno);
        return HLE_RET_EIO;
    }


    s32Ret = ioctl(fd, HI_MIPI_RESET_MIPI, &mipiDevAttr[sns].devno); //ok
    if (HI_SUCCESS != s32Ret)
    {
        ERROR_LOG("HI_MIPI_RESET_MIPI %d failed\n",mipiDevAttr[sns].devno);
        return HLE_RET_EIO;
    }

    DEBUG_LOG("into mipi pos 001, mipiDevAttr[sns].devno = %d\n",mipiDevAttr[sns].devno);


    s32Ret = ioctl(fd, HI_MIPI_ENABLE_SENSOR_CLOCK, mipiDevAttr[sns].devno);//此处失败
    if (HI_SUCCESS != s32Ret)
    {
        ERROR_LOG("HI_MIPI_ENABLE_SENSOR_CLOCK %d failed\n",mipiDevAttr[sns].devno);
        return HLE_RET_EIO;
    } 



    s32Ret = ioctl(fd, HI_MIPI_RESET_SENSOR, &mipiDevAttr[sns].devno);//ok
    if (HI_SUCCESS != s32Ret)
    {
        ERROR_LOG("HI_MIPI_RESET_SENSOR %d failed\n",mipiDevAttr[sns].devno);
        return HLE_RET_EIO;
    } 

    if (ioctl(fd, HI_MIPI_SET_DEV_ATTR, &mipiDevAttr[sns])) //ok
    {
        ERROR_LOG("set mipi attr fail\n");
        close(fd);
        return HLE_RET_EIO;
    }

    usleep(10000);

    s32Ret = ioctl(fd, HI_MIPI_UNRESET_MIPI, &mipiDevAttr[sns].devno);//ok
    if (HI_SUCCESS != s32Ret)
    {
        ERROR_LOG("HI_MIPI_UNRESET_MIPI %d failed\n",mipiDevAttr[sns].devno);
        return HLE_RET_EIO;
    } 

    s32Ret = ioctl(fd, HI_MIPI_UNRESET_SENSOR, &mipiDevAttr[sns].devno);//ok
    if (HI_SUCCESS != s32Ret)
    {
        ERROR_LOG("HI_MIPI_UNRESET_SENSOR %d failed\n",mipiDevAttr[sns].devno);
        return HLE_RET_EIO;
    } 

    close(fd);

    return HLE_RET_OK;
}

报错截图如下：

报错的打印：__osal_unlocked_ioctl - Input param err,it is null! 是SDK库里边打的，

不知道什么原因会这样，包括改sensor I2C地址，都试过了。。。。。。。。。。。

Answer 1

https://blog.csdn.net/qq_42448904/article/details/89203432