IPCOMP(4) - Device Drivers Manual # IPCOMP(4) - Device Drivers Manual
NAME # ipcomp - IP Payload Compression Protocol
DESCRIPTION # IPComp is enabled with the following sysctl(2) variable in /etc/sysctl.conf:
net.inet.ipcomp.enable
IPComp is a protocol used to reduce the size of IP datagrams. It can be used to enhance the communication performance between a pair of hosts/gateways, especially on slow links, by compressing the datagrams, provided the communicating entities have enough computational power.
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IPMI(4) - Device Drivers Manual # IPMI(4) - Device Drivers Manual
NAME # ipmi - Intelligent Platform Management Interface driver
SYNOPSIS # ipmi0 at mainbus0 ipmi0 at acpi? ipmi0 at iic? ipmi0 at fdt?
DESCRIPTION # The ipmi term Intelligent Platform Management refers to autonomous monitoring and recovery features implemented directly in platform management hardware and firmware. The key characteristics of Intelligent Platform Management is that inventory, monitoring, logging, and recovery control functions are available independent of the main processor, BIOS, and operating system.
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IPS(4) - Device Drivers Manual # IPS(4) - Device Drivers Manual
NAME # ips - IBM SATA/SCSI ServeRAID controller
SYNOPSIS # ips* at pci?
DESCRIPTION # The ips driver provides support for IBM ServeRAID controllers, including:
ServeRAID 3H/3HB/3L ServeRAID 4H/4L/4Lx/4M/4Mx ServeRAID 5i/5i II ServeRAID 6i/6M ServeRAID 7k/7M/7t Although the controllers are actual RAID controllers, the driver makes them look just like SCSI controllers. All RAID configuration is done through the bootable IBM ServeRAID Support CD; a CD image is freely available at the IBM website.
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IPSEC(4) - Device Drivers Manual # IPSEC(4) - Device Drivers Manual
NAME # ipsec - IP Security Protocol
DESCRIPTION # IPsec is a pair of protocols, Encapsulating Security Payload (ESP) and Authentication Header (AH), which provide security services for IP datagrams.
Both protocols may be enabled or disabled using the following sysctl(2) variables in /etc/sysctl.conf. By default, both protocols are enabled:
net.inet.esp.enable
Enable the ESP IPsec protocol
net.inet.ah.enable
Enable the AH IPsec protocol
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IT(4) - Device Drivers Manual # IT(4) - Device Drivers Manual
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.
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ITHERM(4) - Device Drivers Manual # ITHERM(4) - Device Drivers Manual
NAME # itherm - Intel 3400 temperature sensor
SYNOPSIS # itherm* at pci?
DESCRIPTION # The itherm driver provides support for several sensors found in Intel 3400 and 5 series chipsets.
The sensors currently exposed via the sysctl(8) interface are:
**Sensor** **Units** **Typical Use** `Thermometer` degC Temperature `Core 1` degC Temperature `Core 2` degC Temperature `CPU power cons.` Watts Power usage `CPU/GPU Max` degC Temperature `DIMM 1` degC Temperature `DIMM 2` degC Temperature `DIMM 3` degC Temperature `DIMM 4` degC Temperature `GPU abs.
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KATE(4) - Device Drivers Manual # KATE(4) - Device Drivers Manual
NAME # kate - AMD K8 temperature sensor
SYNOPSIS # kate* at pci?
DESCRIPTION # The kate driver provides support for the temperature sensors available in the AMD K8 family of processors.
These sensors were officially introduced with Revision F Family 0Fh processors, and provide 1 degC accuracy. Precision was improved in Revision G chips, which provide two more bits for 0.
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KM(4) - Device Drivers Manual # KM(4) - Device Drivers Manual
NAME # km - AMD K10 temperature sensor
SYNOPSIS # km* at pci?
DESCRIPTION # The km driver provides support for the temperature sensors available in the AMD Family 10h, 11h, 14h, 15h, and 16h processors.
Each chip reports one temperature sensor. Multiprocessor systems have one instance of km per chip. The highest resolution supported by the driver is 0.
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KSMN(4) - Device Drivers Manual # KSMN(4) - Device Drivers Manual
NAME # ksmn - AMD F17 temperature sensor over SMN
SYNOPSIS # ksmn* at pci?
DESCRIPTION # The ksmn driver provides support for the temperature sensor available in the AMD Family 17h processors (Zen/Zen+/Zen2).
Sensor values are made available through the sysctl(8) interface.
SEE ALSO # intro(4), pci(4), sensorsd(8), sysctl(8)
HISTORY # The ksmn driver first appeared in OpenBSD 6.
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LCD(4) - Device Drivers Manual (hppa) # LCD(4) - Device Drivers Manual (hppa)
NAME # lcd - front panel LCD display
SYNOPSIS # lcd0 at mainbus0
DESCRIPTION # The lcd driver provides support for the front panel LCD display found on newer HP PA-RISC workstations and servers. This LCD can be made to show a heartbeat based on the load average by setting the sysctl(2) variable machdep.led_blink to a non-zero value.
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