sicontrol(8)

NAME

sicontrol - Specialix SI/XIO driver configuration and debug

ging

SYNOPSIS

sicontrol device command [param ...]

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 settings instead.

A /dev/ is included if necessary.

The following commands are used for the global settings and

should be
specified with the '-' device name:

int_throttle [value]

Configure the `aggregate interrupt throttle value'.

The maximum
number of host adapter interrupts per second is deter

mined 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
interrupts per second.

Lowering this value will increase the rate in which

the host
adapter can interrupt the operating system for atten

tion.

rxint_throttle [value]

Configure the receiver interrupt throttle value. The

default value
of 4 at boot time allows an interrupt rate of approxi

mately 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.

ttystat

Show the current "tty" structure that the kernel has

for the specified port. This is not much use outside of debugging

the driver.

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... :-)

BSD September 26, 1995

BSD