Date: Fri, 25 Apr 2014 18:18:50 +0200 From: Hans Petter Selasky <hps@selasky.org> To: Scott Aitken <freebsd-lists-3@thismonkey.com>, freebsd-arm@freebsd.org Subject: Re: USB audio device on Raspberry Pi - link_elf: symbol isa_dmastatus undefined Message-ID: <535A8AEA.1000100@selasky.org> In-Reply-To: <20140425154430.GA76168@utility-01.thismonkey.com> References: <20140425154430.GA76168@utility-01.thismonkey.com>
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On 04/25/14 17:44, Scott Aitken wrote: > Hi all, > > I'm hoping to use my RPi/FreeBSD as an Airplay device to my amplifier which > presents a USB DAC. > Hi, Audio devices which use ISOCHRONOUS data transport are not supported i FreeBSD, because the RPi uses very small buffers and has to handle 8000 IRQ/s typically for ISOC transfers. --HPS
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