From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by befuddled.reisers.ca (Postfix, from userid 65534) id CAD831EFE31; Wed, 7 Sep 2016 15:33:00 -0400 (EDT) Received: from opera.rednote.net (opera.rednote.net [IPv6:2600:3c03::f03c:91ff:fe70:e783]) by befuddled.reisers.ca (Postfix) with ESMTPS id 4C1E71EFD48 for ; Wed, 7 Sep 2016 15:32:58 -0400 (EDT) Received: from opera.rednote.net (localhost [IPv6:0:0:0:0:0:0:0:1]) by opera.rednote.net (8.15.2/8.15.2) with ESMTP id u87JWvUf008496 for ; Wed, 7 Sep 2016 19:32:57 GMT DMARC-Filter: OpenDMARC Filter v1.3.1 opera.rednote.net u87JWvUf008496 Authentication-Results: opera.rednote.net; dmarc=fail header.from=rednote.net Authentication-Results: opera.rednote.net; spf=pass smtp.mailfrom=janina@rednote.net DKIM-Filter: OpenDKIM Filter v2.10.3 opera.rednote.net u87JWvUf008496 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=rednote.net; s=default; t=1473276777; bh=dEvaTar2mcnTuQEOAtkbJZ0JQgqGMmGagi/jLo/KsZg=; h=Date:From:To:Subject:References:In-Reply-To:From; b=U3lHTEmmRGMIisfB9tEKHHxMAcNLq8BbP0z3pom7n3mOpWT5zHO0R6J7cU438D3xb 5x5kTMg98q3rAxwyH6vJ5yAshu6PhdPHNpet5RH06Kt0xIdHl/T8w/5fDWD+3/6fpR A21CdxRjcf3kiAJ5+15yookeK3SuPj8kYzc/fhOA= Received: (from janina@localhost) by opera.rednote.net (8.15.2/8.14.6/Submit) id u87JWvZo008495 for speakup@linux-speakup.org; Wed, 7 Sep 2016 15:32:57 -0400 Date: Wed, 7 Sep 2016 15:32:57 -0400 From: Janina Sajka To: "Speakup is a screen review system for Linux." Subject: Re: WARNING: Latest Linphone on Arch breaks device access Message-ID: <20160907193257.GF1838@opera.rednote.net> References: <20160907135053.GE1834@opera.rednote.net> <871t0vok6k.fsf@mushroom.localdomain> <20160907173128.GC1838@opera.rednote.net> <87twdrmu61.fsf@mushroom.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <87twdrmu61.fsf@mushroom.localdomain> X-Operating-System: Linux opera.rednote.net 4.7.2-201.fc24.x86_64 X-PGP-Key: http://rednote.net/JaninaSajka_gpg_key.html User-Agent: Mutt/1.7.0 (2016-08-17) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 X-BeenThere: speakup@linux-speakup.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Speakup is a screen review system for Linux." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Sep 2016 19:33:00 -0000 Chris: You've put me on the trail of docs I've looked for and failed to find forever. I'm now looking at: http://alsa.opensrc.org/MultipleCards If I'm reading this correctly, I should be able to get the results I need by specifying a vendor and product id to order my two usb cards like I want them ordered. Very cool. Hope it works! Janina Chris Brannon writes: > Janina Sajka writes: > > > It was a great suggestion, Chris. Unfortunately, it seems there's yet > > another bug in how alsa handles usb devices. > > > > I have 2 usb devices. No matter how I specify things, the card that gets > > invoked is the first of those two. > > Oh interesting. So it looks like there's a name clash. > Last time I dealt with multiple USB audio devices, they had unique > human-friendly IDs by default. My Logitech USB headset was called > Headset, and my FM transmitter was called RocketFM. > Apparently I was just lucky. > > Not sure how much you know about alsa, so I'll also mention that > you can see the human friendly IDs by looking for the symlinks in > /proc/asound. They're also listed in the output of aplay -l, but it's > sort of non-intuitive what they are. > > > Now, if I were really clever, I suppose I'd know how to write udev rules > > to insure that the Sennheiser gets a lower card ID than the C-Media > > device. > > Well if you send me the output of lsusb, I can probably write some udev rules > for you. Or alternatively have a look at http://alsa.opensrc.org/Udev for a > starting point. > > -- Chris > _______________________________________________ > Speakup mailing list > Speakup@linux-speakup.org > http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup -- Janina Sajka, Phone: +1.443.300.2200 sip:janina@asterisk.rednote.net Email: janina@rednote.net Linux Foundation Fellow Executive Chair, Accessibility Workgroup: http://a11y.org The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI) Chair, Accessible Platform Architectures http://www.w3.org/wai/apa