---
title: setTag
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/iomemorydescriptor/1441787-settag
---

# setTag

Set the tag for the memory descriptor.

## Declaration

```occ
virtual void setTag(IOOptionBits tag);
```

## Parameters

- `tag`: The tag.

## Discussion

Discussion This method sets the tag for the memory descriptor. Tag bits are not interpreted by IOMemoryDescriptor.

## See Also

### Accessing the Buffer's Tag

- [getTag](kernel/iomemorydescriptor/1812815-gettag.md)
- [getTag](kernel/iomemorydescriptor/1442070-gettag.md)
- [setTag](kernel/iomemorydescriptor/1812873-settag.md)
- [getVMTag](kernel/iomemorydescriptor/3131493-getvmtag.md)
- [setVMTags](kernel/iomemorydescriptor/3131494-setvmtags.md)