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SICONTROL(8)		     System Manager's Manual		    SICONTROL(8)

NAME
     sicontrol -- Specialix SI/XIO driver configuration and debugging

SYNOPSIS
     sicontrol device command [param ...]

DEPRECATION NOTICE
     The sicontrol utility will be removed in FreeBSD 12.0.

DESCRIPTION
     The  sicontrol  utility  is used to configure and monitor the SI/XIO device
     driver.

     The sicontrol utility operates on the specified device  to  indicate  which
     port is to be used.

     The  special  device  string `-' is used to indicate the global driver set-
     tings instead.

     A /dev/ is included if necessary.

     The following commands are used for the global settings and should be spec-
     ified with the '-' device name:

     int_throttle [value]
	   Configure the `aggregate interrupt throttle value'.	The maximum num-
	   ber of host adapter interrupts per second is determined by:

	   controller CPU clock / (8 * int_throttle)

	   The default value at boot time is 25000.  The host adapter cpu  clock
	   is  25MHz.	This  gives a maximum interrupt rate of about 125 inter-
	   rupts per second.

	   Lowering this value will increase the rate in which the host  adapter
	   can interrupt the operating system for attention.

     rxint_throttle [value]
	   Configure  the  receiver interrupt throttle value.  The default value
	   of 4 at boot time allows an interrupt rate of approximately 25.

	   Lowering this value will increase the rate in which the host  adapter
	   can interrupt the operating system to empty the receiver fifos.

     nport
	   Return the number of ports under the control of the device driver.

     The  following  commands  are  used  for the individual ports and should be
     specified with a device name from /dev:

     mstate
	   Show the current incoming modem control signals.

     ccbstat
	   Show the current "ccb" structure for the specified port.  This is not
	   of much use outside of debugging the driver	and  determining  why  a
	   port is wedged.

FILES
     /dev/si_control  global driver control file for use by sicontrol
     /dev/ttyA*       terminal control ports
     /dev/ttyiA*      initial termios state devices, for use by stty(1)
     /dev/ttylA*      locked termios state devices, for use by stty(1)

DIAGNOSTICS
     Generally self explanatory.....

SEE ALSO
     stty(1), si(4), termios(4), tty(4), comcontrol(8)

HISTORY
     The  sicontrol  utility is loosely based on a utility called siconfig which
     was written by Andy Rutter <andy@acronym.co.uk>.

     Specialix International do not support this device driver in any way.

AUTHORS
     Peter Wemm <peter@FreeBSD.org>

BUGS
     Bound to be many...  :-)

FreeBSD 11.1			  July 8, 2017			    SICONTROL(8)
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