Date: Mon, 05 May 2014 16:33:56 +0200 From: Hans Petter Selasky <hps@selasky.org> To: Matthias Meyser <meyser@xenet.de>, freebsd-arm@freebsd.org Subject: Re: USB audio device on Raspberry Pi - link_elf: symbol isa_dmastatus undefined Message-ID: <5367A154.8010508@selasky.org> In-Reply-To: <5367973F.20300@xenet.de> References: <20140425154430.GA76168@utility-01.thismonkey.com> <535A8AEA.1000100@selasky.org> <20140425204134.GA458@cicely7.cicely.de> <20140430091411.GA45015@utility-01.thismonkey.com> <5360C0A7.9010407@selasky.org> <1398867266.22079.51.camel@revolution.hippie.lan> <CAGW5k5bZ_bTQUXuzNm=tbwx3npz1_HoOR3vM8TBRVFs8zWCq-w@mail.gmail.com> <5362638B.1080104@selasky.org> <5363C133.2000304@selasky.org> <5367973F.20300@xenet.de>
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On 05/05/14 15:50, Matthias Meyser wrote: > > Am 02.05.2014 18:00, schrieb Hans Petter Selasky: >> On 05/01/14 17:08, Hans Petter Selasky wrote: >>> On 05/01/14 01:34, Johny Mattsson wrote: >>>> On 1 May 2014 00:14, Ian Lepore <ian@freebsd.org> wrote: >>>> >>>>> I was doing some testing on a wandboard (about twice as fast an an >>>>> rpi) >>>>> with >>>>> more than 20k int/sec without having any problems. >>>>> >>>> >>>> On a similar note, I've pushed an i.MX 283 (400MHz) board to above 300k >>>> int/sec, on Linux. Admittedly at that point my shell wasn't what you'd >>>> call >>>> "responsive" however =) The ISR in that scenario was the GPIO >>>> handler, so >>>> probably a bit more light-weight than an audio ISR. >>> >>> I'll have a look and see if I can fix it. >> Here is a patch (work in progress) which you can try: >> http://home.selasky.org:8192/dwc_otg_isoc_support_wip.diff >> >> Still not working 100% reliable. Trying to figure out the last bits >> and pieces. > > For testing it would be very helful if someone could add > > device sound > device snd_uaudio > > to RPI-B kernel. > > Having this in BEAGLEBONE would be nice to. > Perhaps this schould go in every config that supports usb. > Hi, The following patch should make "devd" load sound.ko and snd_uaudio.ko automatically: http://svnweb.freebsd.org/changeset/base/265359 --HPS
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