Date: Tue, 07 Feb 2012 11:35:23 +0200 From: Alexander Motin <mav@FreeBSD.org> To: Ruslan Bukin <br@bsdpad.com> Cc: freebsd-multimedia@freebsd.org Subject: Re: [RFT]: RME HDSPe AIO sound driver Message-ID: <4F30F05B.7050803@FreeBSD.org> In-Reply-To: <mailpost.1328605801.1076865.63172.mailing.freebsd.multimedia@FreeBSD.cs.nctu.edu.tw> References: <mailpost.1328605801.1076865.63172.mailing.freebsd.multimedia@FreeBSD.cs.nctu.edu.tw>
next in thread | previous in thread | raw e-mail | index | archive | help
Hi. First of all, thank you! On 02/07/12 11:09, Ruslan Bukin wrote: > This is driver for RME HDSPe AIO (PCIe - series), > professional-grade ($800) sound card. > > Many things not implemented (like MIDI in/out, > TCO, WCM and other expansion boards). > > So only analog and digital in/out are available. > > Driver registers 8 out and 7 in stereo channels, > each represented as separate device, ie: > /dev/dsp%d.p%d > /dev/dsp%d.r%d I think you are misinterpreting concept of channels used in pcm_addchan() function. These channels supposed to provide multiple equal playback/record streams -- hardware equivalent of vchans. If in your case it is different connectors and you want them to be independent -- you should create different PCM/dsp devices for them, like emu10kx or hda drivers do. > Card frequency is in range (32..192) KHz > and period size (32..4096) samples. > > Period size is exported to dev.pcm.%d.period > sysctl. Why are you duplicating here the latency control code already implemented in sound(4)? You should just follow buffer/block size given to you by the sound(4) via hdspechan_setblocksize() and then you can control latency in common way via hw.snd.latency_profile and hw.snd.latency. > Tested on latest HEAD only. > > patch here: > http://bsdpad.com/hdspe/ -- Alexander Motin
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4F30F05B.7050803>