NAME
fhc —
SPARC64 FireHose controller
SYNOPSIS
fhc* at central?
fhc* at mainbus0
DESCRIPTION
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(3) 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/zstty/zskbd(4)
- Zilog 8530 (ZSCC) serial communications driver
SEE ALSO
HISTORY
OpenBSD support for the
fhc first appeared in OpenBSD
3.7.