Function fal_char_device_create

components/fal/src/fal_rtt.c:500–553

* create RT-Thread char device by specified partition * * @param parition_name partition name * * @return != NULL: created char device * NULL: created failed */

 *            NULL: created failed
 */
struct rt_device *fal_char_device_create(const char *parition_name)
{
    struct fal_char_device *char_dev;
    const struct fal_partition *fal_part = fal_partition_find(parition_name);

    if (!fal_part)
    {
        LOG_E("Error: the partition name (%s) is not found.", parition_name);
        return NULL;
    }

    if ((fal_flash_device_find(fal_part->flash_name)) == NULL)
    {
        LOG_E("Error: the flash device name (%s) is not found.", fal_part->flash_name);
        return NULL;
    }

    char_dev = (struct fal_char_device *) rt_malloc(sizeof(struct fal_char_device));
    if (char_dev)
    {
        char_dev->fal_part = fal_part;

        /* register device */
        char_dev->parent.type = RT_Device_Class_Char;

#ifdef RT_USING_DEVICE_OPS
        char_dev->parent.ops  = &char_dev_ops;
#else
        char_dev->parent.init = NULL;
        char_dev->parent.open = NULL;
        char_dev->parent.close = NULL;
        char_dev->parent.read = char_dev_read;
        char_dev->parent.write = char_dev_write;
        char_dev->parent.control = NULL;
        /* no private */
        char_dev->parent.user_data = NULL;
#endif

        rt_device_register(RT_DEVICE(char_dev), fal_part->name, RT_DEVICE_FLAG_RDWR);
        LOG_I("The FAL char device (%s) created successfully", fal_part->name);

#ifdef RT_USING_POSIX_DEVIO
        /* set fops */
        char_dev->parent.fops = &char_dev_fops;
#endif

    }
    else
    {
        LOG_E("Error: no memory for create FAL char device");
    }

    return RT_DEVICE(char_dev);
}

#if defined(RT_USING_FINSH) && defined(FINSH_USING_MSH)