---
title: kIOExternalMethodScalarOutputCountMax
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.12+]
path: kernel/1646101-anonymous/kioexternalmethodscalaroutputcountmax
---

# kIOExternalMethodScalarOutputCountMax

## Declaration

```occ
kIOExternalMethodScalarOutputCountMax = 16
```

## Discussion

Discussion The maximum number of scalars able to passed on output.