I am seeing some problems when using the Powerware 5115 UPS when connected to the Patsburg USB controller and would like to know if anyone has a solution.
The symptom is that PING messages sent to the bcmxcp_usb driver take as long as 25 seconds to complete. The configuration is a Romley patform (a.k.a., Sandy Bridge + Patsburg) running Debian 6 with 2.6.39 kernel with NUT 2.6.4 in which the Powerware is connected via USB 2.0 to the Patsburg. Of note is that the following messages are logged in syslog frequently. 2012-06-21T09:03:10.754413+00:00 (none) kernel: [ 8659.067243] usb 2-1.4: usbfs: USBDEVFS_CONTROL failed cmd bcmxcp_usb rqt 66 rq 13 len 4 ret -110 I believe that these indicate that the USB driver is timing out USB messages to the UPS. The identical setup running on a Westmere + Tylersburg + ICH10R works fine but on that platform the USB connection is USB 1.1. Thanks, Rich Wrenn
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