From owner-freebsd-usb@FreeBSD.ORG  Thu Aug 16 16:41:09 2007
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From: Hans Petter Selasky <hselasky@c2i.net>
To: Andriy Gapon <avg@icyb.net.ua>
Date: Thu, 16 Aug 2007 18:41:16 +0200
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Cc: freebsd-usb@freebsd.org
Subject: Re: usbd_set_config_no vs. usbd_set_config_index
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On Thursday 16 August 2007, Andriy Gapon wrote:
> on 16/08/2007 19:15 Hans Petter Selasky said the following:
> > Hi,
> >
> > I would say that "usbd_set_config_index()" is more reliable and faster
> > than "usbd_set_config_no()". I tried to get rid of
> > all "usbd_set_config_no()".
>
> Hmm, then I am puzzled how my change from *_index() to *_no() helped in
> my case. Maybe some parameters were incorrect, or maybe different
> devices need different parameters and that's where _no() comes useful.

What config number are you setting?

Have you dumped the configuration of your device using "udesc_dump" 
(See /usr/ports/sysutils/udesc_dump) ?

--HPS