SPECDEV (special device)

GDDM V3R2 System Customization and Administration

SPECDEV (special device)

GDDM V3R2 System Customization and Administration
SC33-0871-02

Provides a token defining the type of special device and a namelist providing information specific to a type of special device.

Subsystems:

TSO, VM

Devices:

Family-1

An 8-byte special device name:

'IBM5080 '

To use the 5080 or 6090 Graphics System for graphics

'* '

To turn off the use of the IBM 5080 or 6090 Graphics System

Notes:

1. The device name, ddname, is the same as the name in the command that you issue before you use the 5080 or 6090 Graphics System.

Under CMS, the command is:

FILEDEF ddname GRAF cuu

Under TSO, the command is:


             ALLOC FILE (ddname) UNIT (cuu)

where in both cases, cuu is the address of the control unit for the display unit.

2. The use of a blank indicates DUM5080; that is, no actual 5080 or 6090 need be attached.