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

[Punky Tse]

Mark Pendrith wrote:

Mark,

I need to know,
- what version of kernels running on RedHat? 
- what kinds of USB hardware you run?  USB dongle, bluetooth, USB 
external harddisk, etc.
- did you try other version of 2.0-6 kernels like 2.6.8 and 2.6.12?

Moreover, I wish you can find out more information on your Redhat PC and 
voyage (either WRAP or net4801)
- dmesg output
- lsmod output

I don't know what your USB device controlling program is, but if your 
program involves some kernel call or calls that interact with USB 
modules, different kernels would yield different behaviour or your code 
will be broken.  So understand the kernel different between Redhat and 
Voyage is very important.

- Punky

> 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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-- 
Regards,
Punky
P U N K N ! X  . c o m
Technology + Lifestyle
(http://www.punknix.com)

Voyage Linux
(http://www.voyage.hk/software/voyage.html)