From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clemens Ladisch Subject: Re: [alsa-devel] question about webcam audio capture Date: Mon, 09 Sep 2013 22:22:57 +0200 Message-ID: <522E2E21.5090901@ladisch.de> References: <522DCF23.8090301@ladisch.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: vichy Cc: linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org List-Id: alsa-devel@alsa-project.org vichy wrote: > 2013/9/9 Clemens Ladisch : >> vichy wrote: >>> I try to do webcam audio capture on my arm platform. >>> when I execute audio capture I got below message >>> "retire_capture_urb: 108 callbacks suppressed" >> >> This means that the retire_capture_urb() function printed lots of >> messages, and that 108 of them were thrown away because they were >> identical. > > Does that mean: > 1. 108 of messages are the same and through away No, that at least 109 are the same. >> You have to look at the previous line to get the actual >> message. > > Would you please tell me what the "previous line to get the actual > message" you mean? The previous line in the message log. > tinycap record.wav -D 0 -d 0 -c 2 -r 32000 Try increasng -n or -p. Does recoding on a PC with the same parameters work? Regards, Clemens -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html