Accessing a pdev or its members

Hello all, A third party driver has a probe function foo_probe(struct platform_device) that ends up allocating and initializing a list of various device structs: struct device *dev = &pdev->dev; struct ucsi_dev *udev; udev = devm_kzalloc(dev, sizeof(*udev), GFP_KERNEL); /* initialize udev to important data */ platform_set_drvdata(pdev, udev); I have my own driver that I would like to use to access the *udev that is created when the other device is probed. How would I access a pdev? Or is there a way I can add a function to this driver to expose a *udev? I can't seem to get to it without having a pointer to the pdev, the udev, or some other device struct related to the hardware. Thanks for the help, Drew