---
name: "umstc"
section: "4"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["openbsd"]
url: "https://new.carta.tech/umstc"
---

# umstc(4)

Microsoft Surface Type Cover keyboard

## NAME

**umstc** – Microsoft Surface Type Cover keyboard

## SYNOPSIS

**umstc\* at uhidev?**

## DESCRIPTION

The **umstc** driver responds to some special keys on the Microsoft Type Cover keyboard, such as volume and screen brightness keys.

## SEE ALSO

[uhidev(4)](/uhidev/4.md), [usb(4)](/usb/4.md), [sysctl(8)](/sysctl/8.md)

## HISTORY

The **umstc** driver first appeared in OpenBSD 6.8.

## AUTHORS

The **umstc** driver was written by joshua stein ⟨*jcs@jcs.org*⟩.