Get read working a little bit more. Need to handle edge cases!

sw/test_code/fs_test/main.c

@@ -9,14 +9,15 @@ char data [256];
 int main(void) {
     int8_t fd;
     size_t i;
+    size_t nbytes;
     fat32_init();
 
     /* This is what is going to be part of open */
     fd = fat32_file_open("VERYLA~1TXT");
     cprintf("fd: %x\n", fd);
 
-    while (fat32_file_read(fd, data, 256)){
-        for (i = 0; i < 256; i++) {
+    while ((nbytes = fat32_file_read(fd, data, 256))){
+        for (i = 0; i < nbytes; i++) {
             cprintf("%c", data[i]);
         }
     }