First 3 bytes of files read from FatFs will be truncated about esp-idf-sys HOT 4 CLOSED

Likely related to this issue: esp-rs/rust#96

from esp-idf-sys.

Yeah, it seems like this is the same bug. Closing it here in favor of the already existing bug report.

from esp-idf-sys.

@derchr String::with_capacity only allocates memory, but does not set buffer length, i.e. you can't get a &mut [u8] for the allocated memory. Does your example work if you use vec![0; some_size] instead? In my case, I'm able to read into 0 filled vectors.

from esp-idf-sys.

@derchr String::with_capacity only allocates memory, but does not set buffer length, i.e. you can't get a &mut [u8] for the allocated memory. Does your example work if you use vec![0; some_size] instead? In my case, I'm able to read into 0 filled vectors.

I remember also testing Vec::with_capacity and this did not work. Pre-filling the Vec and writing to it using &mut [u8] might actually work as it's similar to the fixed-array method that did work for me.

from esp-idf-sys.