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sys_attrs_ace(5)
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sys_attrs_ace - ace subsystem attributes
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)
sys_attrs(5)
sys_attrs_ace(5)
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