[Nut-upsuser] Unitek Alpha 650 ipE

Andrej Podzimek andrej at podzimek.org
Mon Jul 14 14:51:07 UTC 2008


Hello Alexander,

the option -VVVVV does not seem to do anything useful. The driver megatec_usb exists immediately.

	[root at charon ~]# megatec_usb -VVVVV -a unitek -u root
	Network UPS Tools 2.2.2 - Megatec protocol driver 1.5.14 [megatec_usb]
	Carlos Rodrigues (c) 2003-2008

	Serial-over-USB transport layer for Megatec protocol driver [megatec_usb]
	Andrey Lelikov (c) 2006, Alexander Gordeev (c) 2006-2007, Jon Gough (c) 2007

	[root at charon ~]#

The result is exactly the same with any lower number of Vs. With no Vs at all, the driver does something for about 30 seconds, but fails afterwards:

	[root at charon ~]# megatec_usb -a unitek -u root
	Network UPS Tools 2.2.2 - Megatec protocol driver 1.5.14 [megatec_usb]
	Carlos Rodrigues (c) 2003-2008

	Serial-over-USB transport layer for Megatec protocol driver [megatec_usb]
	Andrey Lelikov (c) 2006, Alexander Gordeev (c) 2006-2007, Jon Gough (c) 2007

	Megatec protocol UPS not detected.
	[root at charon ~]#

Again, all the files corresponding to the UPS in /sys/class/input disappeared, as if the USB connection was broken by the driver somehow.

There is still a device owned by group nut in /dev. This means that the udev rule works, but at the same time, it is the only thing that works right now... :-(

	[root at charon 001]# pwd
	/dev/bus/usb/001
	[root at charon 001]# ls -l
	celkem 0
	crw-r--r-- 1 root root 189, 0 13. čec 23.55 001
	crw-rw-r-- 1 root nut  189, 5 14. čec 16.31 006
	[root at charon 001]#

What could I try next? Any suggestions?

Andrej



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