ksz_switch_alloc
dev = ksz_switch_alloc(&mdiodev->dev, mdiodev);
dev = ksz_switch_alloc(&i2c->dev, i2c);
EXPORT_SYMBOL(ksz_switch_alloc);
struct ksz_device *ksz_switch_alloc(struct device *base, void *priv);
dev = ksz_switch_alloc(&spi->dev, spi);