[Voyage-linux] Most stable Voyage kernel for USB?

[Robert Haskins]

If you search this list's archives, you'll find several threads where I 
outline the USB related issues I have had with voyage on Soekris 4501 
hardware as well as Mini-ITX hardware. I was never able to solve the USB 
issues I was having, and had to give up on the project altogether. I 
believe that there are bugs in the Linux USB driver causing these 
problems. The issue I was having seemed to be timing related, as if I 
reduced the number of devices it worked "more reliably".

I'd be interested to know what you are able to discover, if anything.

Mark Pendrith wrote:
> I'm using Voyage (kernel-image-2.6.14-486-voyage_2.0-6_i386.deb) on a 
> WRAP.1E and also on a Soekris net4801 box. I'm having the same problem 
> with USB on both boxes.
> 
> I've got four identical USB devices that all work well from my PC 
> running a version of RedHat linux, but all exhibit the same problem on 
> both boxes running Voyage. The problem is that my program controlling 
> the USB device will timeout waiting for a confirmation signal returning 
> from the device. The device performs the function OK, it's just that the 
> confirmation gets lost, which leaves the USB device in a hung state; I 
> need to reinitialise the USB port to reset things.
> 
> After I reinitialise things, I can then send another command to the USB 
> device, after which it will need resetting again.
> 
> Because the behaviour is identical on two different platforms running 
> the same kernel, I;m concentrating my investigations there. I've also 
> eliminated the possibility of the device being faulty, as I have four of 
> them, which all work perfectly under RedHat, but all misbehave in 
> exactly the same way under Voyage.
> 
> Does this ring a bell for anyone else using USB under Voyage? Are some 
> kernels known to have better stability for USB? Or is everyone else 
> using USB devices without issues?
> 
> Any comments/insights appreciated.
> 
> -Mark
> 
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