USB subsytem

david walcroft david_walcroft at yahoo.com.au
Tue Oct 18 21:40:49 UTC 2005


Trevor "TeC" Christian wrote:
> Good day all,
> 
> I have a FC3 web and file server. This server runs apcupsd and provides 
> the network UPS communication interface.  I looking through my root mail 
> this morning, i found that @ 4:43 this morning this server lost contact 
> with the UPS directly connected to it via the USB port.  This setup was 
> always working and a similar configuration is still currently working on 
> another remote server.
> 
> I tried firstly restarting the service (apcupsd) the slave machines 
> which had shown signs of being connected to the ups before now indicated 
> that the communication was lost and successful restart of the service is 
> yet to be achieved.  Checked the logs, did some googling, went to the 
> support page for apcupsd which pointed me to the instructions and 
> precautions i had to take when installing etc...
> 
> I tried unplugging and replugging the UPS even into different ports and got
> 
>> Oct 18 09:23:40 soca kernel: usb 1-2: device not accepting address 11, 
>> error -110
>> Oct 18 09:23:40 soca kernel: usb 1-2: new low speed USB device using 
>> uhci_hcd and address 12
>> Oct 18 09:23:50 soca kernel: usb 1-2: device not accepting address 12, 
>> error -110
>> Oct 18 09:23:50 soca kernel: usb 1-2: new low speed USB device using 
>> uhci_hcd and address 13
>> Oct 18 09:23:54 soca kernel: usb 1-2: device descriptor read/64, error 
>> -110
>> Oct 18 09:24:09 soca kernel: usb 1-2: device descriptor read/64, error 
>> -110
>> Oct 18 09:24:09 soca kernel: usb 1-2: new low speed USB device using 
>> uhci_hcd and address 14
>> Oct 18 09:24:12 soca kernel: usb 1-2: device descriptor read/64, error 
>> -110
> 
> 
> appended to the /var/messages/log
> 
> I've considered restarting the system - but for fear of disruption would 
> wonder if there is an alternative or a way to restarted the USB 
> subsystem that keeps being mentioned in my google results?
> 
> Any thoughts, comments, suggestions are welcome...
> 
> Thank you
> 

Trevor,
       I have only just installed BackUps CS 650 so the install and test 
is fresh in my mind,maybe some questions might help.

1/ What does apcaccess status say?

2/ What is in /var/log/apcupsd.events [or /etc/apcupsd/apcupsd.events]

3/ Check the maual!

   david































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