w8001_command
err = w8001_command(w8001, W8001_CMD_START, false);
w8001_command(w8001, W8001_CMD_STOP, false);
error = w8001_command(w8001, W8001_CMD_STOP, false);
error = w8001_command(w8001, W8001_CMD_QUERY, true);
error = w8001_command(w8001, W8001_CMD_TOUCHQUERY, true);