1 .\" $FreeBSD: src/usr.sbin/sicontrol/sicontrol.8,v 1.11.2.6 2003/03/12 22:08:15 trhodes Exp $
2 .\" $DragonFly: src/usr.sbin/sicontrol/sicontrol.8,v 1.2 2003/06/17 04:30:03 dillon Exp $
9 .Nd Specialix SI/XIO driver configuration and debugging
13 .Ar command Op Ar param ...
17 utility is used to configure and monitor the SI/XIO device driver.
21 utility operates on the specified
23 to indicate which port is to be used.
27 string `-' is used to indicate the global driver settings instead.
31 is included if necessary.
33 The following commands are used for the global settings and should be
34 specified with the '-' device name:
36 .It Cm int_throttle Op Cm value
37 Configure the `aggregate interrupt throttle value'.
38 The maximum number of host adapter interrupts per second is determined by:
40 .Ar "controller CPU clock / (8 * int_throttle)"
42 The default value at boot time is 25000. The host adapter cpu clock is
43 25MHz. This gives a maximum interrupt rate of about 125 interrupts per
46 Lowering this value will increase the rate in which the host adapter can
47 interrupt the operating system for attention.
49 .It Cm rxint_throttle Op Cm value
50 Configure the receiver interrupt throttle value.
51 The default value of 4 at boot time allows an interrupt rate of
54 Lowering this value will increase the rate in which the host adapter can
55 interrupt the operating system to empty the receiver fifos.
58 Return the number of ports under the control of the device driver.
61 The following commands are used for the individual ports and should be
62 specified with a device name from
66 Show the current incoming modem control signals.
68 Show the current "ccb" structure for the specified port.
70 much use outside of debugging the driver and determining why a port is
73 Show the current "tty" structure that the kernel has for the specified port.
74 This is not much use outside of debugging the driver.
77 .Bl -tag -width /dev/si_control -compact
78 .It Pa /dev/si_control
79 global driver control file for use by
82 terminal control ports
84 initial termios state devices, for use by
87 locked termios state devices, for use by
91 Generally self explanatory.....
101 utility is loosely based on a utility called
104 .An Andy Rutter Aq andy@acronym.co.uk
106 Specialix International do not support this device driver in any way.
108 .An Peter Wemm Aq peter@FreeBSD.org
110 Bound to be many... :-)