cros_ec_prepare_tx
ret = cros_ec_prepare_tx(ec_dev, msg);
rv = cros_ec_prepare_tx(ec_dev, msg);
ret = cros_ec_prepare_tx(ec, msg);
EXPORT_SYMBOL(cros_ec_prepare_tx);
ret = cros_ec_prepare_tx(ec_dev, msg);
ret = cros_ec_prepare_tx(ec_dev, msg);
ret = cros_ec_prepare_tx(ec_dev, msg);
ret = cros_ec_prepare_tx(ec_dev, msg);
len = cros_ec_prepare_tx(ec_dev, ec_msg);
len = cros_ec_prepare_tx(ec_dev, ec_msg);
len = cros_ec_prepare_tx(ec_dev, ec_msg);
len = cros_ec_prepare_tx(ec_dev, ec_msg);
int cros_ec_prepare_tx(struct cros_ec_device *ec_dev,