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USB UPSes

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Corey Halpin

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Jan 22, 2002, 7:30:11 PM1/22/02
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Hello.
I'm trying to get my Tripp Lite UPS which uses USB to communicate to talk to
my computer.
I'm using sid, with kernel 2.4.17.
I don't know what kernel modules to use.
I would also like pointers to UPS software.

Thank you,
crh


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Shaul Karl

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Jan 22, 2002, 7:50:10 PM1/22/02
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> Hello.
> I'm trying to get my Tripp Lite UPS which uses USB to communicate to talk to
> my computer.
> I'm using sid, with kernel 2.4.17.
> I don't know what kernel modules to use.
> I would also like pointers to UPS software.
>


For UPS software you might look at http://www.exploits.org/nut.
Note that I am not sure what is the state of the support it has for a
USB based UPSs and whether it will work with your UPS.


> Thank you,
> crh
>


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Howard Shane

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Jan 26, 2002, 11:02:37 AM1/26/02
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On Tue, 22 Jan 2002 18:30:11 -0600, Corey Halpin wrote:

> Hello.
> I'm trying to get my Tripp Lite UPS which uses USB to communicate to
> talk to
> my computer.
> I'm using sid, with kernel 2.4.17.
> I don't know what kernel modules to use. I would also like pointers to
> UPS software.
>
> Thank you,
> crh
>
>

I have a Belkin USB UPS. USB UPSes are experimental and there's really
nothing I've been able to find on the subject anywhere except for some
cryptic references in the kernel docs (I'm using 2.4.16).

That said, I have been able to establish contact with my UPS by enabling
USB support in the kernel and Human Interface Driver (HID) support. When
my system boots, it reports the following in dmesg:

hiddev0: USB HID v1.00 Device [BELKIN BELKIN] on usb1:2.0

I am using upsd as the daemon to manage the power supply, which using a
script similar to that documented in the upsd-docs initiates runlevel 1
when the UPS reaches a 'low power' state.

The only problem is that though everything seems to work fine, I'm not
sure how to test it without running the battery down, which I'm obviously
hesitant to do. If anybody has a suggestion on how to simulate a low
power state for testing, please post.

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