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SubjectRe: [linux-usb-devel] Sync problem with Ethernet-over-USB driver and Qtopia desktop
Hong Feng wrote:
> Hi All,
>
> I met a very funny problem. I am writing the ethernet-over-usb driver
> for our PDA based on embedded Linux and QT/Qtopia. ...
>
> Who knows the problem, please give me some comments. BTW, the kernel
> version is 2.4.18. QT's version is 2.3.6. Qtopia's version is 1.6.2.

And on what sort of hardware?

If you're writing your own ethernet-over-usb driver, perhaps the
problem is somewhere in that stack. Either that ethernet driver,
or the one for your USB device controller could have the bugs.

The ethernet-over-usb driver in the "gadget" stack should behave
quite nicely. It's the only network link on two systems I've
got running right now: a net2280 on an NForce2 box (where 2.6
of course doesn't support the built-in ethernet); and a pxa255
(for nfsroot, MTD has acted broken on that hardware). Neither
one has shown me the kind of un-usability problems you describe,
using either 2.4 or 2.6 kernels. The network "just works", as
it should. On the other hand, I'm not using Qtopia ... ;)

See http://www.linux-usb.org/gadget/ for more information about
that stack, and the 2.6 kerneldoc for printable API reference.

- Dave






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