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# IOReportCategories

```
typedef uint16_t IOReportCategories;
```

## Discussion

\abstract encapsulate important, multi-purpose “tags” for channels
\discussion IOReportCategories is the type for the .categories field of
IOReportChanelType.  These categories are inteded to empower a
limited number of clients to retrieve a broad range of channels
without knowing much about them.  They can be OR’d together as
needed.  Groups and subgroups are a more extensible mechanism
for aggregating channels produced by different drivers.

---

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