[arm-allstar] RPi 4B 4GB USB problem

[Patrick Perdue]

Hi:

Unfortunately, I can't help with your problem, but I have had a similar 
issue with a Pi 4 2GB and a pair of ThumbDV dongles. The Pi 4 was unable 
to host both dongles without the aid of a powered USB hub, but my Pi 3 
model B from 2016 had no problems doing so.

Others have reported problems hosting SDRs on the Pi 4, though I think 
some of that was fixed with a kernel update in July.

Did you try adding the line max_usb_current=1 to /boot/config.txt? I 
don't know if that is even relevant anymore with the new boards.


On 11/11/2019 11:55 AM, "Will Olendy via ARM-allstar" wrote:
> Good Morning, I just subscribed to the email forum, hope this is the right spot to ask questions! Forgive me for the long paragraphs but it’s the only way I can describe this strange problem I’m having I can’t seem to find any info anywhere for it with a google search.
> I purchased a new RPi4B 4GB unit to migrate my simplex nodes over to from an older RPi 2. The image I am using is the latest Hamvoip 1.6 image for Pi2,3 and 4B. Everything loads and boots fine as far as I can tell. The USB fobs I am using for radio functions on both nodes  are modified CM-108 USB sound fobs from Amazon with the proper CM-108 chip.
> After setting up my primary node parameters in the first time script for 49993 everything works fine and my previous extra settings I simply manually filled in, in the bash shell from the various .conf files from my Pi2. These work (custom courtesy tones) and its back to business for my first node at least, now on to the secondary node... 49994
> I modify and fill in the spots for my secondary node activation and USB recognition, Including simpleusb.conf and rpt.conf then plug the second USB fob into another of the Pi4B’s 4 USB ports, observing the red LED illuminating but not flashing yet to indicate its inactive. The primary node USB fob is active and flashing the LED quickly to indicate its active.
> Upon sending an “astres.sh” command and observing the unit reboot the asterisk service, the primary node USB fob stops flashing quickly and goes to a slower flash and has no Tx audio sending through the radio, just a carrier. PTT and COS work fine but NO AUDIO. The secondary node fob I just configured for starts flashing quickly and everything’s working for the second node including audio in and out. For some reason I cannot get this Pi4B to properly operate 2 nodes, one per USB fob in each of the USB ports. Either one or the other doesn’t work and the opposite works fine. UNTIL I plug in a 4 port USB Hub in one of the USB ports and plug a sound fob in there, then both start working fine. But once I unplug the USB hub and plug the second fob back in, one goes back to no audio and this one works fine, the CLI client properly sees each USB fob and assigns it the simpleUSBtune.config file that it should. The first USB is labeled “usb” and the second one is labeled “usb1”.
> I am stumped and this is a problem as I bought this Pi4B for better multitasking capabilities and it will not properly run 2 nodes simultaneously due to some unknown USB condition I didn’t have with the Pi2. In fact my Pi2 ran 3 of my simplex nodes simultaneously with few issues that I noted.
> Is there an issue with the current USB kernel for the Pi4B on Hamvoip? I see there was one for Ubuntu but that’s it.
> 73
>
> Will VA3JWO
>
>
>
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