sys_attrs_ace(5)sys_attrs_ace(5)NAMEsys_attrs_ace - ace subsystem attributes
DESCRIPTION
This reference page lists and describes attributes for the serial
driver (ace) kernel subsystem, used only on the DEC 2000, AlphaServer,
and AlphaStation family of processors. Refer to the sys_attrs(5) refer‐
ence page for an introduction to the topic of kernel subsystem
attributes.
Number of communication ports configured for the system. The
ace_cnt value is query only and cannot be changed directly by
users.
Default value: 0
Minimum value: 0
Maximum value: 8
A value that turns ace debugging mode on (1) or off (0).
Default value: 0 (off)
Do not modify the default value of this attribute unless
instructed to do so by support personnel.
The major number assigned to device special files /dev/tty0n
(where n equals 0 to 8). The ace_major value is query only and
cannot be changed directly by users.
Default value: 35
Minimum value: 0
Maximum value: 512
The number of seconds that Data Carrier Detect must be done
before declaring that a disconnect has occurred. Valid values
are 0, 1, and 2.
Default value: 2 (seconds)
SEE ALSOsys_attrs(5)sys_attrs_ace(5)
