It reports weird filenames (as below), but at least i can see the device! Thanks!
How did you create the files on the card?
This version of SdFat: GitHub - greiman/SdFat: Arduino FAT16/FAT32 exFAT Library
Only supports standard 8.3 files names.
Legal characters for 8.3 file names include the following
Upper case letters A–Z
Numbers 0–9
! # $ % & ' ( ) - @ ^ _ ` { } ~
This beta version: GitHub - greiman/SdFat-beta: Beta SdFat for test of new features
Supports a limited set of long file names.
Here is a quote from the html documentation for SdFat-beta:
SdFat supports Long File Names. Long names in SdFat are limited to 7-bit ASCII characters in the range 0X20 - 0X7E The following are reserved characters:
< (less than)
(greater than)
: (colon)
" (double quote)
/ (forward slash)
\ (backslash)
| (vertical bar or pipe)
? (question mark)
- (asterisk)