front panel LCD display
lcd0 at mainbus0
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.
sysctl(2), intro(4), sysctl(8)
lcd driver first appeared in