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Charles, Did you get chance to look at the data I sent you, please? I?ve done some more work myself and the conclusion I?ve reached is that if the minibus OpenUPS doesn?t support instant commands, then sending ?upsdrvctl shutdown? won?t ever work, as it would need to send instant commands! Also from the trace I sent you, it appears that after the ?RunTimeToEmpty? query, the interface tries to read a Report b1 of size 248 which results in a broken pi...

Charles, Thanks again for your help, and sorry I didn?t :cc - noted for the future! I?m suspicious that the OpenUPS doesn?t behave properly in a number of ways, of which the USB traffic is the one of immediate concern. It seems to me that NUT can read from it but probably not write to it: and the OpenUPS doesn?t flag ?low battery? conditions correctly either. It does shut itself down at a

On Mar 17, 2015, at 11:46 AM, Philip Taylor <philip at kelsotowers.co.uk> wrote: > Charles, > > Did you get chance to look at the data I sent you, please? > > I?ve done some more work myself and the conclusion I?ve reached is that if the minibus OpenUPS doesn?t support instant commands, then sending ?upsdrvctl shutdown? won?t ever work, as it would need to send instant commands! You are correct; I don't see any HU_TYPE_CMD entries in openups-hid.c. I latched on to the other error you mentioned (about claiming the device). The other H...

...Philip Taylor <philip at kelsotowers.co.uk <mailto:philip at kelsotowers.co.uk>> wrote: > >> Charles, >> >> Did you get chance to look at the data I sent you, please? >> >> I?ve done some more work myself and the conclusion I?ve reached is that if the minibus OpenUPS doesn?t support instant commands, then sending ?upsdrvctl shutdown? won?t ever work, as it would need to send instant commands! > > You are correct; I don't see any HU_TYPE_CMD entries in openups-hid.c. I latched on to the other error you mentioned (about claiming the device). &g...