Perle Systems RIO 5500036-17 - Manual (Page 257)

RIO Remote I/O System User Guide
RIO system commands under Solaris/Linux/LynxOS
Page 257
Chapter 5 RIO command line utilities
Linux When using riomkdev under Linux please note the following;
Linux
The RIO Linux driver generates terminal and modem device nodes for each
RTA specified in the
rio.cf file ( page 260 ).Thus for a specified RTA, the
following device nodes are created;
/dev/ttySRx for a terminal device
/dev/cusrx for a modem device
The Linux driver does not support transparent printing.