Topic: Allowed to open a file for reading and writing?
Is it allowed to open a file for both reading and writing? What I'd like to do is use the same file pointer for read and write access.
I'm doing this:
fin = esxdos_f_open(argv,ESXDOS_MODE_R|ESXDOS_MODE_W|ESXDOS_MODE_OE);
which amounts to a call to f_open with mode flag 0x03. The emulator (ZEsarUX) is coming up with error 6: I/O ERROR. I have no real hardware to test this on so I'm not sure if this is an emulator problem or not.