| PCHSMBUS(4D) | Devices | PCHSMBUS(4D) |
pchsmbus — Intel
PCH SMBus Controller
The pchsmbus driver is an SMBus 2.0
controller that supports many generations of Intel chipsets. Supported
device families include the original Intel Controller Hub family (ICH), the
Intel Platfrom Controller Hub family (PCH), various on-package chipsets, and
a variety of Atom and other processors.
The pchsmbus driver is part of the
system's I2C framework and is accessible through common tools such as
i2cadm(8). The controller supports all
SMBus 2.0 operations and has a 32-byte block buffer. In addition, it has
compatibility options to generate I2C-based block reads and writes. The
driver does not support changing any SMBus parameter timings and the
controller generally only operates at 100 kHz.
| October 4, 2025 | OmniOS |