01-03-2011
SunFire 280R maintenance LED is on and no display
I got the system couple of days back from one of my friend. Last night I turned it on and I noticed that maintenance LED is on. At the same time I added an LCD monitor via VGA and nothing was showing on the screen. Though the system does not have any HDD So not sure if system will even show a BIOS screen when it is not present.
I took all RAM out, display card out, additional card out and then put them back.
I wanted to know whether the system is in working state before I buy a HDD. Also I checked all fans are on also there is an LED shows green on the bottom mother board and it is on. Power LED is also on.
I tried booting from CD but no luck. When power is turning on I see that system does check for CD and LED is blinking on CD.
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ULED(4) BSD Kernel Interfaces Manual ULED(4)
NAME
uled -- USB LED driver
SYNOPSIS
To compile this driver into the kernel, place the following lines into your kernel configuration file:
device uled
device usb
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
uled_load="YES"
DESCRIPTION
The uled driver provides support for the Dream Cheeky WebMail Notifier device.
Subsequently, the /dev/uled0 device can be used by userland applications.
IOCTLS
The following ioctl(2) commands can be performed on /dev/uled0, which are defined in <dev/usb/uled_ioctl.h>:
ULED_GET_COLOR
The command returns LED colors with values for RGB. This ioctl(2) takes the following structure:
struct uled_color {
uint8_t red;
uint8_t green;
uint8_t blue;
};
ULED_SET_COLOR
The command sets LED colors with values for RGB. It uses the same structure as above.
FILES
/dev/uled0 blocking device node
SEE ALSO
ohci(4), uhci(4), usb(4)
AUTHORS
The uled driver was written by Kevin Lo <kevlo@FreeBSD.org>.
BSD
September 5, 2014 BSD