PCA954X(4D) Devices PCA954X(4D)

NAME

pca954x - PCA 954X series I2C mux driver

DESCRIPTION

The pca954x driver provides support for the PCA 954X series I2C
switches and multiplexors. Instances of pca954x are part of the
system's I2C framework and not manipulated directly, but are visible
with i2cadm(8).

The following devices are currently supported by the driver:

+o PCA9543 -- 2 port switch

+o PCA9545 -- 4 port switch

+o PCA9546 -- 4 port switch

+o PCA9548 -- 8 port switch

+o PCA9846 -- 4 port switch

+o PCA9848 -- 8 port switch

FILES

/kernel/drv/amd64/pca954x Device driver (x86)

SEE ALSO

i2cadm(8)

illumos October 4, 2025 illumos