On Wednesday 11 October 2006 14:39, Per Hallsmark wrote:
> Hi Claudio,
>
> Well, I don't think there exist a open driver for ixp465 usb HOST
> controller yet.
Hi Per.
I see, I thought that the Intel Access Library worked also for the USB as
well as for the Ethernet but it seems that I was wrong...
>
> There is for the usb DEVICE controller. The IAL from Intel has some
> support for usb DEVICE controller but I believe the linux kernel has
> it's own pure code
> for this, not depending on IAL.
>
> The pen drive you insert is most likely a usb DEVICE, so it want to talk
> to a
> usb HOST (like your linux desktop or ixp465 usb HOST interface).
>
> Your option is either buy a dist/kernel that has a usb HOST driver for
> ixp465
> (like Montavista) or do your own.
Ok, I'm going for doing my own, even if it will require some weeks of
programming/debugging.
> Basically you go into drivers/usb/host
> and copy the ehci_pci driver to like ehci_ixp4xx, change it a lot and
> debug for a
> while. (the usb controller inside ixp465 is NOT easy to work with....
> :-) )
Just a question. Why do you suggest to start from ehci_pci ? I would
suggest to start from ehci-fsl since it is a platform device with some
probing already implemented... Maybe your suggestion hides some tip that I
couldn't see...
>
> Good luck.
Many thanks for your help,
Claudio
> Claudio Scordino wrote:
> > Hi all,
> >
> > I encountered some problems with the USB host support during the
> > porting of Linux 2.6.17.11 to a Intel IXDP465 architecture (IXP465
> > processor).
> >
> > I ported and loaded the Intel Access Library (ixp400 and ixp400_eth
> > modules) and loaded the Microcode (cat IxpIxNpeMicrocode.dat
> >
> >> /dev/ixNpe).
> >
> > Then, I loaded the following drivers, as proposed by Maulik Mankad on
> > this mailing list few months ago:
> >
> > usbcore
> > scsi_mod
> > sd_mod
> > usb-storage
> > ehci-hcd
> >
> > Just to be sure, I also loaded the following modules:
> >
> > sg
> > ch
> > libusual
> >
> > However, when I insert a USB host (ia pen drive) the system does not
> > see it: I cannot see the device using dmesg, /proc/scsi or
> > /sys/class/usb.
> >
> > Since the Montavista kernel is not freely downloadable, I cannot
> > either see how they solved this problem...
> >
> > Any help and suggestion is very welcome.
> >
> > Many thanks in advance,
> >
> > Claudio
> >
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