ePAPR hypervisor byte channel driver

modulename: ehv_bytechan.ko

configname: CONFIG_PPC_EPAPR_HV_BYTECHAN

Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>ePAPR hypervisor byte channel driver
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This driver creates /dev entries for each ePAPR hypervisor byte
channel, thereby allowing applications to communicate with byte
channels as if they were serial ports.

source code: