Folks,

I have been working on a problem with the usbhid-ups driver and the MGE / Eaton Ellipse series UPS. There seems to be light at the end of the tunnel.

For whatever reason, these devices seem to trigger error 'EPIPE' randomly. So far, the response to this of the usbhid-ups (and previously, newhidups) driver is to reconnect. Most of the time this will succeed on the first try and nothing will be logged to the syslog. At times however, this will take several tries before this succeeds, causing a lot of noise in both the syslog and for the clients connected to this UPS.

The sad thing about this is, is that the reconnect doesn't seem to be needed (at least not for the MGE / Eaton Ellipse). Can anybody remember why we added this in the first place?

Best regards, Arjen
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