NAME
it – ITE IT87xxF and SiS SiS950 temperature, voltage, and fan sensor with watchdog timer
SYNOPSIS
it* at isa? port 0x2e it* at isa? port 0x4e
DESCRIPTION
The it driver provides support for the ITE IT8705F, IT8712F, IT8716F, IT8718F, IT8720F, IT8726F, IT8728F, IT8772F and SiS SiS950 hardware monitors and watchdog(4) timer to be used with the sysctl(8) interface.
Most supported devices possess 17 sensors:
| Sensor | Units | Typical Use |
| temp0 | uK | CPU Temperature |
| temp1 | uK | Motherboard Temperature |
| temp2 | uK | Unused |
| fan0 | RPM | CPU Fan |
| fan1 | RPM | Chassis Fan |
| fan2 | RPM | Power Fan |
| fan3 | RPM | Unused |
| fan4 | RPM | Unused |
| volt0 | uV DC | Core voltage |
| volt1 | uV DC | Core voltage |
| volt2 | uV DC | +3.3V |
| volt3 | uV DC | +5V |
| volt4 | uV DC | +12V |
| volt5 | uV DC | -12V |
| volt6 | uV DC | -5V |
| volt7 | uV DC | +5VSB |
| volt8 | uV DC | VBAT |
SEE ALSO
HISTORY
The it driver first appeared in OpenBSD 3.4.
AUTHORS
The it driver was originally written for OpenBSD 3.4 by Julien Bordet ⟨[email protected]⟩, and completely rewritten for OpenBSD 4.3 by Oleg Safiullin ⟨[email protected]⟩.
BUGS
Watchdog timer functionality is not supported for ITE IT8705 or SiS SiS950 chips. For older IT8712 chips, watchdog timeout values of more than 255 seconds are rounded up to the nearest minute.