Get SD card free space not updating?

[gunar.kroeger]

I am able to read SD card free space by using this function:

Code: [Select all] [Expand/Collapse]

1. bool SD_getFreeSpace(uint32_t *tot, uint32_t *free)
2. {
3.     FATFS *fs;
4.     DWORD fre_clust, fre_sect, tot_sect;
5.  
6.     /* Get volume information and free clusters of drive 0 */
7.     if(f_getfree("0:", &fre_clust, &fs) == FR_OK)
8.     {
9.         /* Get total sectors and free sectors */
10.         tot_sect = (fs->n_fatent - 2) * fs->csize;
11.         fre_sect = fre_clust * fs->csize;
12.  
13.         *tot = tot_sect / 2;
14.         *free = fre_sect / 2;
15.  
16.         /* Print the free space (assuming 512 bytes/sector) */
17.         ESP_LOGD(TAG, "%10lu KiB total drive space. %10lu KiB available.", *tot, *free);
18.  
19.         return true;
20.     }
21.     return false;
22. }

GeSHi © Codebox Plus Extension

But even if I remove the SD card after I mounted the card I still get the same values as before removing the card. Is there a way to get free and total space without unmounting and remounting the SD card? I wish to check at least if the SD card has been removed.
Currently I am opening and closing an empty file to do this.

[pilidfast-mail]

That's the software bug, nothing to do with hardware. Report the issue, next update might (will) solve it.

[gunar.kroeger]

That's the software bug, nothing to do with hardware. Report the issue, next update might (will) solve it.

https://github.com/espressif/esp-idf/issues/3278