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

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


-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2005.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________
[email protected]
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel