From mboxrd@z Thu Jan  1 00:00:00 1970
From: Takashi Iwai <tiwai@suse.de>
Subject: Re: USB Audio/Midiman - partial success
Date: Wed, 25 Sep 2002 12:46:16 +0200
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To: "Pikus, Fedor" <fedor_pikus@mentorg.com>
Cc: Clemens Ladisch <clemens@ladisch.de>, alsa-devel@lists.sourceforge.net
List-Id: alsa-devel@alsa-project.org

At Tue, 24 Sep 2002 20:03:54 -0700 (PDT),
Fedor G. Pikus <fedorp@wv.mentorg.com> wrote:
> 
> > then the complete callback is called properly but likely
> > snd_pcm_period_elapsed() is not called.
> 
> That's right, it's not called:
> for (i = 0; i < urb->number_of_packets; i++) {
>         cp = (unsigned char *)urb->transfer_buffer + urb->iso_frame_desc[i].offset;
>         if (urb->iso_frame_desc[i].status) /* active? hmm, skip this */
>                 continue;

could you check what value is stored in the status field?
i guess some negative value, which represents an error.

and, how does the driver act if you skip this check?


ciao,

Takashi


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