sys_attrs_ace(5) File Formats Manual sys_attrs_ace(5)
NAME
sys_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) reference 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 ALSO
sys_attrs(5)
sys_attrs_ace(5)
