[Nut-upsdev] Re: [Nut-upsuser] Ablerex 625L USB version

[Charles Lepple]

On 1/30/07, Peter Selinger <selinger at mathstat.dal.ca> wrote:
> This looks buggy to me. Did anything else happen after "Waiting for
> notifications..."? Like, for example, did the device receive any data
> notifications? This could happen infrequently, like once per
> minute. But there is a chance that the device would send correct data
> voluntarily (on the interrupt pipeline), whereas it is apparently
> sending incorrect data when asked for it.

Peter,

I just did a quick search, and it doesn't appear that usbhid-ups does
a 'Set Idle' HID request anywhere. Could it be that the device is
waiting for that before it starts sending back interrupt pipe ACK
packets? IIRC, Windows does a 'Set Idle(0)' request when devices are
plugged in, then the userspace program is free to send a non-zero
value.

-- 
- Charles Lepple