Re: Hi all, I'm newbe, so apologize for my stupid questions.

Wow, Alan, 
you are the manteiner of the UHCI !!!!

So you are the GURUUU!!!!!

Please help me finding where I can hack teh kernel to watch the content of the 
data stage of a get_device_descriptor transaction.

Thanks


Alle 16:12, sabato 22 settembre 2007, Alan Stern ha scritto:
> On Sat, 22 Sep 2007, Fabio Giovagnini wrote:
> > Alle 22:48, venerdì 21 settembre 2007, Alan Stern ha scritto:
> > > 	http://www.linux-usb.org/gadget/
> >
> > RE:
> > Maybe I have been not so clear; my Host is runnung Linux Suse 10.1; my
> > device is a very poor hardware where I'm tring to emulate a mass storage
> > device but without using in it any general purpouse operatin system.
> >
> > My actual real probelm is the following;
> > I have enabled on my device the interrupt due by SETUP request by the
> > host; I receive proprly it and I find it is a Device Descriptor device;
> > so I build my 18 byte length device descriptor and I sent it to the host;
> > unfortunately my Control Endpoint has a FIFO of only 8 byte; so for
> > trasmetting 18 byte I need to trasmit the fist 8 bytes; enabild the
> > interrupt of Tx OK and in the interrupt handler trasmit the second 8
> > byte, waitng the interrupt of Tx Ok and trasmit in such last interrupt
> > the last 2 bytes. After that I was expected to receive by the host the
> > status stage transaction meaing then  end of reception of my Device
> > descriptor by the host.
> > In the reality I see just one interrupt occurs, and after that I receive
> > the status stage by host.
> > I suppose I do not trasmit correct data, but to be sure of that I need to
> > be able to read what the host control endpoint is really receiving. I
> > tried usbmon, but I did not see anything about my new attached device.
>
> Can you post the usbmon output?
>
> Also, on your host you should enable CONFIG_USB_DEBUG and see what
> appears in the dmesg log.
>
> Alan Stern

-- 
Fabio Giovagnini

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