From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx1.redhat.com ([209.132.183.28]:29378 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755513Ab2GENlP (ORCPT ); Thu, 5 Jul 2012 09:41:15 -0400 Message-ID: <4FF59995.4010604@redhat.com> Date: Thu, 05 Jul 2012 15:41:41 +0200 From: Hans de Goede MIME-Version: 1.0 To: Antti Palosaari CC: Linux Media Mailing List , hverkuil@xs4all.nl Subject: Re: [PATCH 4/4] radio-si470x: Lower firmware version requirements References: <1339681394-11348-1-git-send-email-hdegoede@redhat.com> <1339681394-11348-4-git-send-email-hdegoede@redhat.com> <4FF45FF7.4020300@iki.fi> <4FF5515A.1030704@redhat.com> <4FF5980F.8030109@iki.fi> In-Reply-To: <4FF5980F.8030109@iki.fi> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Hi, On 07/05/2012 03:35 PM, Antti Palosaari wrote: >> I believe you're doing something wrong ... >> >>> I compiled radio from http://git.linuxtv.org/xawtv3.git to tune and >> > "arecord -r96000 -c2 -f S16_LE | aplay - " to play sound. Just >> silent white noise is heard. >> >> You're not specifying which device arecord should record from so likely >> it is taking >> the default input of your soundcard (line/mic in), rather then recording >> from the >> radio device. > > I tried to define hw:1,0 etc. but only hw:0,0 exists. > >> Note the latest radio from http://git.linuxtv.org/xawtv3.git will do the >> digital loopback of >> the sound itself, so try things again with running arecord / aplay, if >> you then start radio >> and exit again (so that you can see its startup messages) you should see >> something like this: >> >> "Using alsa loopback: cap: hw:1,0 (/dev/radio0), out: default" >> >> Note radio will automatically select the correct alsa device to record >> from for the radio-usb-stick. > > For some reason I don't see that happening. Hmm, so it seems that for some reason alsa is not working with the usb "sound-card" part of the usb-stick. Can you try doing: ls /dev/snd/ Before and after plugging in the device, you should get a new PCMC?D0c device there. Otherwise see if you can enable some debugging options for snd-usb-audio and find out why it is not liking your device (and maybe at a quirk for it somewhere) ? If you do end up adding a quirk please let me know and I'll test with mine to ensure the quirck does not break working versions :) Regards, Hans