Geoff,

Some quick troubleshooting that might help?

Pull the usb dongle, wait 2 seconds and plug it back in.
If it finds it and it begins working again, you might have one of the following problems.

A bad dongle,

a irq confict with usb hub not sharing properly with other device including other usb hub.
- Move to a new usb hub reassign hub/device in conf.
- Turn off all built-in hardware not being utilized and reset pnp.

...mike/kb8jnm


-------- Original Message --------
Subject: Re: [App_rpt-users] Problem with two repeaters..
From: Geoff <ars.w5omr@gmail.com>
Date: Sat, September 06, 2014 9:24 am
To: app_rpt-users@ohnosec.org


On 09/03/2014 12:45 PM, Loren Tedford wrote:
Hello having issues running both repeaters for some reason it is telling me that Device usb27103 currently not active what does this mean? its all plugged in was working then all the suddenly stopped working randomly is it not detecting the device number correctly with the URI? I am running 2 Cm200 on vhf for this repeater and node 29925 is running flawlessly with out any issues with 2 Cm200 on UHF


Sometimes, things happen.  Some software bug causes the usb daemon to fall, or something...

On that note, I did a quick google search for start/stop/status on usb devices for CentOS and came up with

http://www.zedt.eu/tech/linux/restarting-usb-subsystem-centos/

Their suggestion of looking in /sys/bus/pci/drivers/ehci_hcd or xhci_hcd doesn't exist in my directory path.  So, I did a 'lsusb' and came up with:
[root@W5OMR /sys/bus/usb/drivers/usbfs]# lsusb
Bus 005 Device 001: ID 0000:0000 
Bus 005 Device 003: ID 0d8c:013a C-Media Electronics, Inc.
Bus 005 Device 002: ID 0d8c:013a C-Media Electronics, Inc.
Bus 002 Device 002: ID 046d:c31c Logitech, Inc. Keyboard K120 for Business
Bus 002 Device 001: ID 0000:0000 
Bus 001 Device 001: ID 0000:0000 
Bus 003 Device 001: ID 0000:0000 
Bus 004 Device 001: ID 0000:0000 


From the link, they suggest;

echo -n "0000:00:xx.y" > unbind
Remember to enable them back:
echo -n "0000:00:xx.y" > bind
where instead of xx.y you fill in the correct set of numbers to use the IDs discovered above.
This procedure is the same for all RHEL-like distributions (Red Hat Enterprise, CentOS, Fedora).

The bottom line is, there's hardly ever a reason to reboot an entire working Linux operating system loaded machine.
Services can stopped and restarted from the command line without the need to reboot the entire system.

I have had, on occasion, the need to restart the networking sub-system.  By performing a

root@w5omr> /etc/init.d/networking restart

takes care of that problem.

Just my 0.02c

73 = Best Regards,
-Geoff/W5OMR

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