Homebrew Question Access sdmc filesystem from homebrew

[marinaluna]

Hi! I’m developing homebrew for the Switch. When I use opendir(“”) from dirent.h to open the current directory, I can list the files just fine from the “switch” folder. However, trying to open any other directory results in displaying an empty directory when I try to print the entries. My question is, what is the proper way to open sd card directories?

 

[DocKlokMan]

opendir("sdmc:/path/to/dir/")

 

[marinaluna]

opendir("sdmc:/path/to/dir/")

Huh, I got it to work without using sdmc:/. Weird.

 

[CompSciOrBust]

Huh, I got it to work without using sdmc:/. Weird.

You can do both sdmc and just slash iirc. If you want to mount the nand you have to do some other stuff and assign it to a mount point.
Edit: And if you do just "" it won't be guaranteed to be the Switch folder. It will be whichever folder the NRO is in, if the user has the NRO in a different place it will access that folder, just something to be aware of.