Use Opti-UPS CS730B with Linux

It has a USB port, however it can not be autodetected by nut-2.4.1 of my Mandriva linux since the port /dev/ttyUSB0 was not created when it's plugged in. The kernel detected a powercom USB to serial converter but the usbhid driver is binding to it as shown in /proc/bus/usb/devices

T: Bus=02 Lev=01 Prnt=01 Port=03 Cnt=01 Dev#= 7 Spd=1.5 MxCh= 0
D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0d9f ProdID=0002 Rev= 0.00
S: Manufacturer=POWERCOM CO., LTD.
S: Product=USB to Serial
C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=03(HID ) Sub=00 Prot=00 Driver=usbhid
E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=10ms
E: Ad=02(O) Atr=03(Int.) MxPS= 8 Ivl=10ms

Apparently it's not of the USB/HID UPS type since it can't be matched to any known device by usbhid-ups. I searched the internet and found a proposed fix: In order to recognize it correctly, I had to rmmod usbhid cypress_m8 and modprobe cypress_m8. Afterwards the following is shown in



T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  4 Spd=1.5 MxCh= 0
D:  Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0d9f ProdID=0002 Rev= 0.00
S:  Manufacturer=POWERCOM CO., LTD.
S:  Product=USB to Serial
C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=03(HID  ) Sub=00 Prot=00 Driver=cypress
E:  Ad=81(I) Atr=03(Int.) MxPS=   8 Ivl=10ms
E:  Ad=02(O) Atr=03(Int.) MxPS=   8 Ivl=10ms



and the following from dmesg:

cypress 2-4:1.0: HID->COM RS232 Adapter converter detected
usb 2-4: HID->COM RS232 Adapter converter now attached to ttyUSB0

Subsequent modprobe usbhid doesn't remove the port ttyUSB0. Now I can download a copy of the managing software from the manufacture OPTI-UPS: OPTI SAFE Xtreme+ V1.0 for Linux (dated 2009-05-21), which appears to me a tar archive. Its License Key (85OPT4-584499) & User Manual can be downloaded from the same link (RAR archive). After I install it, I have the following lines in /usr/ups/ups.cfg
UpsModel=--CLEVER Series 110V/60Hz--
UpsDevice=/dev/ttyUSB0:1200,n,8,1
UpsCable=0
PortTCP=8081
Then I can start the upsman and


• Connect to its web server through http://localhost:8081/ and monitor the status of the CS730B. After disconnect, I can also configure it through the web.

• Configure the UPS by running the command service upsman conf