ig44
Synopsys designware i2c controller
Usage
To compile this driver into the kernel, place the following lines into the kernel configuration file:
device ig4 device iicbus
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
ig4_load="YES"
Overview
The ig4 driver provides access to peripherals attached to an I2C controller.
Hardware
ig4 supports the I2C controllers based on Synopsys DesignWare IP that can be found in Intel(R) Core(TM) processors starting from the fourth generation, Intel(R) Bay Trail, Apollo Lake SoC families, and some AMD systems.
Sysctl variables
These sysctl(8) variables are available:
- debug.ig4_dump
-
This sysctl is a zero-based bit mask. When any of the bits are set, a register dump is printed for every I2C transfer on an
ig4device with the same unit number.
Releases
25 releases since FreeBSD 11.0-RELEASE; the text changed 11 times.