Device class

Device classes determined by F$GETDVI("","DEVCLASS") are stored as DC$ symbols in the macro library module $DCDEF. Here is how to look up this information:

$ library/extract=$dcdef/output=sys$scratch:$dcdef.mar sys$library:starlet.mlb 
$ search sys$scratch:$dcdef.mar 66,DC$/match=and 

$EQU    DC$_TERM        66

Below is a table that lists DC$ device classes:

$EQU	DC$_ANY	0
$EQU	DC$_DISK	1
$EQU	DC$_TAPE	2
$EQU	DC$_SCOM	32
$EQU	DC$_CARD	65
$EQU	DC$_TERM	66
$EQU	DC$_LP	67
$EQU	DC$_WORKSTATION	70
$EQU	DC$_REALTIME	96
$EQU	DC$_DECVOICE	97
$EQU	DC$_AUDIO	98
$EQU	DC$_VIDEO	99
$EQU	DC$_BUS	128
$EQU	DC$_MAILBOX	160
$EQU	DC$_REMCSL_STORAGE	170
$EQU	DC$_MISC	200