SdFat: How to go to parent directory?

i wonder how go parent directory sdfat.

sdfat sd;
sd.vwd()->chdir("..") nothing
sd.vwd()->chdir() goes root directory

any hints?

thanks, oliver

there not supported way.

i wrote function:

code: [select]

  /** experimental don't use */
  bool openparent(sdbasefile* dir);

i made private since not happy design.  no 1 asked didn't follow up.

you edit sdbasefile.h @ line 358 , make public.  may not work since wrote long time ago.

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