Date: Thu, 1 May 2014 09:34:56 +1000 From: Johny Mattsson <johny.mattsson+fbsd@gmail.com> To: freebsd-arm@freebsd.org Subject: Re: USB audio device on Raspberry Pi - link_elf: symbol isa_dmastatus undefined Message-ID: <CAGW5k5bZ_bTQUXuzNm=tbwx3npz1_HoOR3vM8TBRVFs8zWCq-w@mail.gmail.com> In-Reply-To: <1398867266.22079.51.camel@revolution.hippie.lan> 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>
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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.
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