> Am Dienstag, 29. März 2011, 07:38:15 schrieb James: > > Is it normal for this device (UPS) to keep connecting and disconnecting? > > > > generic-usb 0003:0764:0501.007F: claimed by neither input, hiddev nor hidraw > > usb 2-4: USB disconnect, address 127 > > usb 2-4: new low speed USB device using ohci_hcd and address 2 > > usb 2-4: New USB device found, idVendor=0764, idProduct=0501 > > usb 2-4: New USB device strings: Mfr=3, Product=1, SerialNumber=0 > > usb 2-4: Product: CP550HG > > usb 2-4: Manufacturer: CPS > > No, this shouldn't happen. It is unclear from your log, why the device keeps > disconnecting. > > Regards > Oliver > Hello, I'm reproducing this disconnect-reconnect cycle caused by CyberPower UPS (mis?)using the usbhid interface. This same issue was occurring about a year ago, and was resolved by kernel update to 2.6.35.2 (around August 2010 archlinux i think). After recent update to 2.6.38.5 the issue reappears. Currently reproducing on 2.6.38.7 UPS model is CyberPower CP1500 AVR UPS, although issues occur with other models matching the VENDORID:PRODUCTID of 0764:0501, this includes model DX600E-FR and the model reported here by James. Captured usbmon data for 2 dis/reconnect cycles: tshark -V -i usbmon3 -w 2xdisconnect.cap attached as tshark-V-iusbmon3-w-2xdisconnect.cap (sorry if file attachment is bad for the list, please advise) If this hid issue warrants addressing, I could provide additional debug data, or test patches. Thank You... johnea
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tshark-V-iusbmon3-w-2xdisconnect.cap
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