qccpucp(4)

qccpucp4

Qualcomm cpucp mailbox controller

Usage

qccpucp* at fdt?

Overview

The qccpucp handles communication with the Qualcomm CPUSS Control Processor. It is used as a doorbell for CPU frequency management via scmi(4) on Qualcomm Snapdragon X Elite devices.

Releases

Unchanged in 5 releases since OpenBSD 7.7.

  1. 7.7–8.0

History

The qccpucp device driver first appeared in OpenBSD 7.7.

Authors

The qccpucp driver was written by Tobias Heider ⟨[email protected]⟩.

From man 8.0-current-20261101 in OpenBSD 8.0-current (2026-11-01). Parsed by carta from the page's mdoc source.