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Date: Tue, 17 May 2011 14:45:35 +0200
From: Luca Pizzamiglio <l.pizzamiglio@bally-wulff.de>
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To: Hans Petter Selasky <hselasky@c2i.net>
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Cc: freebsd-usb@freebsd.org
Subject: Re: SMARTCARD USB Reader
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Hi,

It was my mistake, I didn't understand that libusb20_tr_open() wants the 
bEndpointAddress provided by the end point descriptor as ep_no parameter.
Man pages are not extremely detailed and I used usbconfig sources as 
documentation, but I didn't found examples on transfer functions usage, 
then my mistake.

Does anyone know a project or library that use libusb20 that I could use 
as example?

If HPS agree, I want to use the experience I'm collecting to improve 
documentation or to write examples and/or a tutorial.

thanks again

Regards,
Luca

On 05/17/11 11:33, Luca Pizzamiglio wrote:
> On 05/17/11 11:22, Hans Petter Selasky wrote:
>> On Monday 16 May 2011 16:28:55 Luca Pizzamiglio wrote:
>>> libusb20_dev_open( pdev, 32 )
>>> libusb20_dev_set_config_index( pdev, 0)
>>> bin_ep = libusb20_tr_get_pointer( pdev, 0 );
>>> libusb20_tr_open( bin_ep, 4096, 1, bin_ep_num );
>>> bout_ep = libusb20_tr_get_pointer( pdev, 1 );
>>> libusb20_tr_open( bout_ep, 4096, 1, bout_ep_num );
>>> irq_ep = libusb20_tr_get_pointer( pdev, 2 );
>>> libusb20_tr_open( irq_ep, 4096, 1, irq_ep_num );
>>
>> What is the value of irq_ep_num ?
>>
>> --HPS
>
> irq_ep_num is 2 and the device has 3 end points (confirmed also by
> usbconfig).
>
> the device is ugen2.2 then the output of ls /dev/usb/2.2* is
> /dev/usb/2.2.0 /dev/usb/2.2.1 /dev/usb/2.2.2 /dev/usb/2.2.3
>
> Regards,
>
> Luca
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