The RAM disk supports the following I/O functions:
- io_read()
- Reads a file's contents or returns directory entries.
- io_close_ocb()
- Closes a file descriptor, and releases the file if it was open but unlinked.
- io_devctl()
- Handles a few of the standard devctl() commands for filesystems.
- io_write()
- Writes data to a file.