+static int do_custom(OsRoutine *ed, u8 b3)
+{
+ struct {
+ unsigned int addr;
+ unsigned int size;
+ } d;
+
+ switch (b3)
+ {
+ case 'd':
+ usb_read(ed, &d, sizeof(d));
+ ed->usbWriteByte('k');
+ printf("sending %i bytes from %06x..\n", d.size, d.addr);
+ usb_write(ed, (void *)d.addr, d.size);
+ printf("done.\n");
+ return 1;
+ default:
+ break;
+ }
+
+ return -1;
+}
+