Re: PDIUSB12 driver

[Greg KH <greg@xxxxxxxxx>]

On Mon, Aug 13, 2007 at 01:23:20PM +0200, Marcin G??ogowski wrote:
> Hi everybody,
> I have to rewrite/create my own Linux driver for the PDIUSB12 usb chip
> (USB storage).

Why?  Doesn't the current usb-storage driver work for it?  What about
the ub driver?  Don't we have enough usb storage drivers in the tree
already?  :)

> I would like to know whether somebady has such example/driver or how to
> write a DMA command and data to USB device.

You can't do that directly, sorry.

> I have look at the "edb931x-usb.c" code and I saw that there is a
> communication via registers.
> My chip doesn't support registers only DMA commands/data, but as I
> mentioned don't know how to use those commands (I don't know them).
> I would be very grateful for any help.
> The PDF to chip that I use is at:
> www.nxp.com/acrobat_download/various/PDIUSBD12_PROGRAMMING_GUIDE.pdf
> <http://www.nxp.com/acrobat_download/various/PDIUSBD12_PROGRAMMING_GUIDE.pdf>

Wait, is this a USB host controller, a device controller, or do you need
a driver on the host to control the device?

confused,

greg k-h

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