The
utility provides control of the
Digiboard
installed with the given
ctrl-device
name and provides control of individual digiboard
devices
A digiboard
ctrl-device
is usually of the form
/dev/digi N .ctl
where
N
is the card number and starts at
``0''
for the first attached card.
A digiboard
device
is usually of the form
/dev/cua [il D N . P
]
or
/dev/tty [il D N . P
]
where
N
is the card number and
P
is the port number.
The following flags are recognized:
-a disable | enable | query
Disable, enable or query the
ALTPIN
settings for the given port(s).
When ALTPIN is enabled, the CD and DSR lines are logically reversed.
This is useful when wiring serial ports to an 8 way RJ45 cable (full
10 way RJ45 cables are quite rare).
A single ALTPIN setting applies to both of the callout and callin devices.
-d debug
If the driver has been compiled with
DEBUG
defined, the following bits from the
debug
variable are used to enable diagnostics in the digiboard driver:
1 ( INIT
Diagnostics during card attach, detach and initialization.
2 ( OPEN
Diagnostics when opening a port.
4 ( CLOSE
Diagnostics when closing a port.
8 ( SET
Diagnostics when setting tty device flags.
16 ( INT
Diagnostics when processing card events.
32 ( READ
Reports return values from port reads.
64 ( WRITE
Reports return values from port writes.
128 ( RX
Reports receive queue flow control.
256 ( TX
Reports transmit queue flow control.
512 ( IRQ
Diagnostics during interrupts (enable these with care).
1024 ( MODEM
Diagnostics when setting modem status flags.
2048 ( RI
Reports when a RING is received.
-i
Display the card identification string and type ID.
-r
Reinitialize the card.
For boards with external port modules, it is possible to add or remove
modules and dynamically reprobe the number of ports using this switch.
All ports on the card must be closed in order to reinitialize the card.
It is preferable to reinitialize the card rather than reload the entire
digi module as reinitialization only affects the specified board rather
than affecting all attached boards.
HISTORY
The
utility first appeared in
Fx 5.0 .
BUGS
It should be possible to reinitialize a board without closing all of the
existing ports.
