mpremote/mount: Add ioctl to specify large read buffer size.

pi-anl · pi-anl · commit cffb05ffe2bf · 2023-11-03T08:50:26.000+11:00
Speeds up importing files from mounted filesystem.

Signed-off-by: Andrew Leech &lt;andrew.leech@planetinnovation.com.au&gt;
diff --git a/tools/mpremote/mpremote/transport_serial.py b/tools/mpremote/mpremote/transport_serial.py
@@ -753,6 +753,8 @@ def ioctl(self, request, arg):
             machine.mem32[arg] = self.seek(machine.mem32[arg], machine.mem32[arg + 4])
         elif request == 4:  # CLOSE
             self.close()
+        elif request == 11:  # BUFSIZE
+            return 255
         return 0
 
     def flush(self):
