Re-request write/read op after loop is done; fixes multiple sequential writes not working

src/ec/controller.rs

@@ -133,7 +133,7 @@ impl embedded_io::Write for EmbeddedController {
                 super::ports::outl(self.data_address, u32::from_ne_bytes(l));
             }
         }
-
+        self.cmd_requested = 0;
         Ok(buf.len())
     }
 
@@ -179,6 +179,7 @@ impl embedded_io::Read for EmbeddedController {
                 }
             }
         }
+        self.cmd_requested = 0;
         Ok(buf.len())
     }
 }