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тАО07-22-2007 08:26 AM
тАО07-22-2007 08:26 AM
How to create a logical serial port for a physical USB
I have found on internet 2 packages that might do the trick, but I do not understand how to implement them... those SW kits basically contain only one C program.
http://ftdi-usb-sio.sourceforge.net
http://www.ftdichip.com/Drivers/VCP.htm
Could anybody give me an advice?
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тАО07-22-2007 07:24 PM
тАО07-22-2007 07:24 PM
Re: How to create a logical serial port for a physical USB
let me know the make and model of the UPS
or go through the link it may helps.
http://www.vttoth.com/ER-OF800.htm
and this is for APC ups usb
http://sourceforge.net/project/showfiles.php?group_id=54413&package_id=73150&release_id=440720
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тАО07-23-2007 10:40 PM
тАО07-23-2007 10:40 PM
Re: How to create a logical serial port for a physical USB
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тАО08-09-2007 11:04 AM
тАО08-09-2007 11:04 AM
Re: How to create a logical serial port for a physical USB
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тАО08-09-2007 11:31 PM
тАО08-09-2007 11:31 PM
Re: How to create a logical serial port for a physical USB
http://www.ftdichip.com/Drivers/VCP.htm
These packages will not help you. They are for converters that plug into computer's USB port and provide a serial port for any external peripheral. They are designed to be used by a "host" USB entity, which is the computer.
The UPS presents itself to the computer as a "device" USB entity, which cannot use other USB devices unless the USB host entity coordinates the access. So you cannot plug an USB-to-Serial converter to any arbitrary USB device and expect it to work.
Unless you have access to the source code of the Powerware UPS firmware, you cannot change the UPS to use any USB-to-Serial converters.
If the program that came with the UPS cannot use USB with Linux, I suggest you abandon that program, and use something else instead.
"Network UPS Tools" is a free software package that can handle many USB-connected UPSes on Linux, including Powerware 5110.
MK
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тАО08-10-2007 02:05 AM
тАО08-10-2007 02:05 AM