bcmxcp_usb - Experimental driver for UPSes supporting the BCM/XCP protocol over USB
Contents
Default Values For The Extra Arguments
shutdown_delay=120
Experimental Driver
This driver has been tagged experimental, even if it has been reported to be stable. Thus it is not
suitable for production systems and it may be not built by default. This is mainly due to the fact that
it is a new driver.
Extra Arguments
This driver supports the following optional settings in the ups.conf(5).
shutdown_delay=delay
The number of seconds that the UPS should wait between receiving the shutdown command and actually
shutting off.
Note
This driver does not currently support USB-matching settings common to other drivers, such as vendor,
vendorid, product, productid, serial, device or bus.
Implementation
bcmxcp_usb only supports 1 UPS at this time. You can put the "auto" value for port in ups.conf, i.e.:
[pw3105]
driver = bcmxcp_usb
port = auto
Installation
This driver may be not built by default. You can require building it by using ./configure --with-usb=yes
(note that it will also install other USB drivers), or ./configure --with-drivers=bcmxcp_usb. Either way,
you would need libusb-dev (libraries and headers package) or equivalent for other platforms.
You also need to install manually the hotplug files (libhidups and libhid.usermap), generally in
etc/hotplug/usb/, to address the permission settings problem. Lastly note that the libhidups file must
have execution flag set (ie using chmod +x ...).
Instant Commands
This driver supports the following Instant Commands:
shutdown.return
Turn off the load and return when power is back.
shutdown.stayoff
Turn off the load and remain off.
test.battery.start
Start a battery test.
Known Issues And Bugs
GotEPERM:Operationnotpermittedupondriverstartup""
You have forgotten to install the hotplug files, as explained in the INSTALLATION section above. Don’t
forget to restart hotplug so that it applies these changes.
Name
bcmxcp_usb - Experimental driver for UPSes supporting the BCM/XCP protocol over USB
See Also
Thecoredriver:nutupsdrv(8) Internetresources: The NUT (Network UPS Tools) home page: https://www.networkupstools.org/historic/v2.8.3/ Network UPS Tools 2.8.3 07/08/2025 BCMXCP_USB(8)
Supported Hardware
This driver should recognize all BCM/XCP-compatible UPSes that are connected via USB. It has been
developed and tested on Powerware PW3501 hardware. It also has been tested on PW5110 hardware.
Synopsis
bcmxcp_usb -h
bcmxcp_usb -a UPS_NAME [OPTIONS]
Note
This man page only documents the hardware-specific features of the bcmxcp_usb driver. For information
about the core driver, see nutupsdrv(8).
Note
This driver is a variant of the serial driver bcmxcp(8) and uses the same core code.
Todo List
ReportUPSalarmstatus
BCM/XCP supports reporting a wide range of UPS alarm conditions.
ReportUPSstatisticsinformation
BCM/XCP supports reporting of UPS statistics data.
