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# ConfigurationRead32

Reads a 32-bit data value synchronously from the device’s configuration space.

```
void ConfigurationRead32(uint64_t offset, uint32_t *readData);
```

## Parameters

`offset`

An offset into the configuration space. This method ignores bits 0 and 1. For a list of possible offset values, see [Configuration Data Offsets](/documentation/PCIDriverKit/configuration-data-offsets-enum).

`readData`

A variable that stores the 32-bit data value. If the method encounters an error, it sets the value to -1.

## Discussion

---

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