ITESIO(4) | Device Drivers Manual | ITESIO(4)

# NAME

`itesio` —
ITE IT87xxF Super I/O driver

# SYNOPSIS

`itesio0 at isa? port 0x2e`
`itesio1 at isa? port 0x4e`

# DESCRIPTION

The `itesio` driver provides support for the Environment Controller and the Watchdog Timer on the IT87xxF Super I/Os, and may be used to monitor hardware sensors or setting up a watchdog timeout value for the system.

The `itesio` driver has 15 sensors:

Sensor | Units | Typical Use
`Temp0` | uK | CPU Temp
`Temp1` | uK | System Temp
`Temp2` | uK | Aux Temp
`VIN0` | uV DC | Vcore A
`VIN1` | uV DC | Vcore B
`VIN2` | uV DC | +3.3V
`VIN3` | uV DC | +5V
`VIN4` | uV DC | +12V
`VIN5` | uV DC | -12V
`VIN6` | uV DC | -5V
`VIN7` | uV DC | STANDBY
`VBAT` | uV DC | VBAT
`Fan0` | RPM | CPU Fan
`Fan1` | RPM | System Fan
`Fan2` | RPM | Aux Fan

The `itesio` Watchdog Timer is configurable via the wdogctl(8) utility and has a resolution between 1 and 65535 seconds. The Watchdog Timer is not supported on the IT8705 Super I/O.

# SEE ALSO

envsys(4), envstat(8), wdogctl(8)

# HISTORY

The `itesio` driver first appeared in OpenBSD 3.4 and was then ported to NetBSD 4.0.

# AUTHORS

The `itesio` driver was written by Julien Bordet <zejames@greyhats.org> and Juan Romero Pardines <xtraeme@netbsd.org>.

# BUGS

Interrupt support is unimplemented.

April 2, 2008 | NetBSD 9.4