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IG4(4) Device Drivers Manual IG4(4)

NAME

ig4 —
Intel(R) fourth generation mobile CPU integrated I2C SMBus driver

SYNOPSIS

To compile this driver into the kernel, place the following lines into the kernel configuration file:
device ig4
device smbus

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

ig4_load="YES"

DESCRIPTION

The ig4 driver provides access to peripherals attached to an I2C SMB controller. ig4 supports the SMBus controller found in fourth generation Intel(R) Core(TM) processors based on the mobile U-processor line for intelligent systems. This includes the i7-4650U, i5-4300U, i3-4010U, and 2980U.

SYSCTL VARIABLES

These sysctl(8) variables are available:
debug.ig4_dump
Setting this to a non-zero value dumps controller registers to console and syslog once. The sysctl resets to zero immediately.

SEE ALSO

smb(4), smbus(4)

AUTHORS

The ig4 driver was written for DragonFly BSD by Matthew Dillon and subsequently ported to FreeBSD by Michael Gmelin <freebsd@grem.de>.

This manual page was written by Michael Gmelin <freebsd@grem.de>.

May 30, 2015 Linux 4.9.0-9-amd64