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

# kIOExternalMethodScalarInputCountMax

## Declaration

```occ
kIOExternalMethodScalarInputCountMax = 16
```

## Discussion

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