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CLKBRD(4) (SPARC64)
CLKBRD(4) FreeBSD Kernel Interfaces Manual (SPARC64) CLKBRD(4)

NAME

clkbrdclock board

SYNOPSIS

device clkbrd

DESCRIPTION

The clkbrd driver provides support for the clock board found in Sun Enterprise xx00 systems. The clock board has three status LEDs labeled “ Power”, “ Failure” and “ Cycling”. These LEDs are also mirrored on the main front panel. The “ Cycling” LED can be made to blink by writing ASCII strings to the /dev/led/clockboard device.

On attach the clkbrd driver also prints out the number of board slots the chassis provides.

FILES

/dev/led/clockboard
clock board LED device node

SEE ALSO

fhc(4), led(4)

HISTORY

The clkbrd driver first appeared in OpenBSD 3.7. The first FreeBSD version to include it was FreeBSD 6.0.

AUTHORS

The clkbrd driver was written by Jason L. Wright and ported to FreeBSD by Marius Strobl <marius@FreeBSD.org>.

CAVEATS

Hardware management functionality is not implemented.
June 18, 2005 FreeBSD