DECstation DZ serial driver

modulename: dz.ko

configname: CONFIG_SERIAL_DZ

Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>Serial drivers
└─>DECstation DZ serial driver
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
DZ11-family serial controllers for DECstations and VAXstations,
including the DC7085, M7814, and M7819.

source code: