fhc4
Sparc64 firehose controller
Usage
fhc* at central? fhc* at mainbus0
Overview
The fhc device provides support for the FireHose controllers found on Sunfire, Starfire, and Wildfire UltraSPARC systems. These devices are used for board level functions on these systems. This device also controls an LED for each slot. This LED can be made to blink based on the load average on most systems by setting the sysctl(2) variable machdep.led_blink to a non-zero value.
Hardware
OpenBSD includes the following fhc drivers, sorted by driver name:
- clkbrd(4)
-
SPARC64 Clock Board
- clock(4)
-
real-time clock
- environ(4)
-
SPARC64 temperature sensor
- zs(4)
-
Zilog 8530 (ZSCC) serial communications driver