Drat. The mmap code only works for non-interleaved memory map interfaces. The only device I know of that works with the is the RME Hammerfall series.
I don't know if alsa supports any sort of mmap-ing for your hardware, but if so (and I guess it would be interleaved in that case) it might be worth hacking the mmap code to try that. It sounds less likely to hang than the read/write interface would be. cheers Miller On Sun, Apr 13, 2014 at 04:42:04PM -0400, Chris Clepper wrote: > I could not get PortAudio to work on ARM at all and Jack has issues with > duplex low latency. > > What's the deal with the ALSA mmap code? Doesn't that use callbacks? > > > On Sun, Apr 13, 2014 at 2:55 PM, Miller Puckette <[email protected]> wrote: > > > You might have already tried this, but it might work better to use > > portaudio to get to ALSA - it can connect with ALSA using callbacks > > which the built-in ASA code doesn't. I don't know what difference this > > will make but perhaps it will help. > > > > (try compiling with and without FAKEBLOCKING and THREADSIGNAL defined in > > s_audio_pa.c). > > > > cheers > > Miller > > > > On Sat, Apr 12, 2014 at 07:26:56PM -0700, Jonathan Wilkes wrote: > > > There isn't a way to poll the DSP state in Pd Vanilla. > > > > > > -Jonathan > > > > > > On Saturday, April 12, 2014 8:47 PM, Chris Clepper <[email protected]> > > wrote: > > > > > > [pdinfo] is not part of vanilla. I can't (nor want to) use extended for > > this project. > > > > > > On Saturday, April 12, 2014, Jonathan Wilkes <[email protected]> wrote: > > > > > > On 04/12/2014 04:27 PM, Chris Clepper wrote: > > > > > > > >Hi list > > > >> > > > >> > > > >>I'm wondering if there are any recommended ways to ensure DSP keeps > > running for long periods like permanent installations. I get 'audio I/O > > stuck' popping up every few days, which is not bad, but ideally audio > > should stay running indefinitely. > > > >> > > > >> > > > >>I can send a [metro 1000] to [;pd DSP 1( to keep audio going, but is > > there any long term issue with doing that? Will it reliably restart audio > > after Pd closes it? > > > >> > > > >> > > > >>Also, the internal message [;pd audiostate( only returns data to the > > console. Perhaps there is a way to poll Pd for the internal DSP state and > > restart it if it dies? > > > >In Pd-l2ork: > > > >[dsp-status( > > > >| > > > >[pdinfo] > > > > > > > >-Jonathan > > > > > > > > > > > > > > > >> > > > >>Thanks! > > > >> > > > >> > > > >> > > > >> > > > >>_______________________________________________ [email protected] > > > >>list > > > UNSUBSCRIBE and account-management -> > > http://lists.puredata.info/listinfo/pd-list > > > > > > > > > _______________________________________________ > > > [email protected] mailing list > > > UNSUBSCRIBE and account-management -> > > http://lists.puredata.info/listinfo/pd-list > > > > > _______________________________________________ > [email protected] mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list _______________________________________________ [email protected] mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
