After booting server - device settings lost

We made a migration from Unix (Solaris) to Linux (RedHat)

After reboot server:

  1. We lost the permission of the devices (to PortServer)
    Following command on the command line is necessary
    chmod a+rw /dev/tty_dgrp*

  2. We lost the edelay settings of the above devices.
    We need 1ms and not 100ms (default)
    Following command on the command line for all devices is necessary
    ditty-rp edelay 1 /dev/ttyb02

Is there a possibility to make this settings permanent?