1 .\" $FreeBSD: src/usr.sbin/sicontrol/sicontrol.8,v 1.11.2.6 2003/03/12 22:08:15 trhodes Exp $
8 .Nd Specialix SI/XIO driver configuration and debugging
12 .Ar command Op Ar param ...
16 utility is used to configure and monitor the SI/XIO device driver.
20 utility operates on the specified
22 to indicate which port is to be used.
26 string `-' is used to indicate the global driver settings instead.
30 is included if necessary.
32 The following commands are used for the global settings and should be
33 specified with the '-' device name:
35 .It Cm int_throttle Op Cm value
36 Configure the `aggregate interrupt throttle value'.
37 The maximum number of host adapter interrupts per second is determined by:
39 .Ar "controller CPU clock / (8 * int_throttle)"
41 The default value at boot time is 25000. The host adapter cpu clock is
42 25MHz. This gives a maximum interrupt rate of about 125 interrupts per
45 Lowering this value will increase the rate in which the host adapter can
46 interrupt the operating system for attention.
48 .It Cm rxint_throttle Op Cm value
49 Configure the receiver interrupt throttle value.
50 The default value of 4 at boot time allows an interrupt rate of
53 Lowering this value will increase the rate in which the host adapter can
54 interrupt the operating system to empty the receiver fifos.
57 Return the number of ports under the control of the device driver.
60 The following commands are used for the individual ports and should be
61 specified with a device name from
65 Show the current incoming modem control signals.
67 Show the current "ccb" structure for the specified port.
69 much use outside of debugging the driver and determining why a port is
72 Show the current "tty" structure that the kernel has for the specified port.
73 This is not much use outside of debugging the driver.
76 .Bl -tag -width /dev/si_control -compact
77 .It Pa /dev/si_control
78 global driver control file for use by
81 terminal control ports
83 initial termios state devices, for use by
86 locked termios state devices, for use by
90 Generally self explanatory.....
100 utility is loosely based on a utility called
103 .An Andy Rutter Aq Mt andy@acronym.co.uk
105 Specialix International do not support this device driver in any way.
107 .An Peter Wemm Aq Mt peter@FreeBSD.org
109 Bound to be many... :-)