nviic(4)

nviic4

Nvidia nforce2/3/4 smbus controller

Usage

nviic* at pci? iic* at nviic?

Overview

The nviic driver provides support for the NVIDIA nForce2/3/4 and MCP51/55/61/65/67/73/77/79/89 SMBus host interface to be used with the iic(4) framework.

Releases

43 releases since OpenBSD 3.9; the text changed 8 times.

  1. 3.9
  2. 4.0
  3. 4.1
  4. 4.2
  5. 4.3
  6. 4.4–4.5
  7. 4.6–5.1
  8. 5.2–5.3
  9. 5.4–8.0

History

The nviic driver first appeared in OpenBSD 3.9.

Authors

The nviic driver was written by David Gwynne ⟨[email protected]⟩.

Bugs

The driver doesn't support I2C commands with a data buffer size of more than 2 bytes.

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