> From: Clemens Ladisch via Alsa-user
>
> Paul D. DeRocco wrote:
> >> Paul D. DeRocco wrote:
> >>> options snd slots=snd-soc-hifiberry-dacplus,snd-usb-audio
> >>>
> >>> midiC0D0 a USB MIDI device
> >>> midiC1D0 another USB MIDI device
> >>> pcmC2D0p and pcmC2D1p on-board crappy PWM audio
> >>> pcmC3D0p Hifiberry DAC
> >>> pcmC4D0p HDMI audio
> >>
> >> Show your entire alsa.conf.
> >
> > I did. The one-liner you just quoted is all I used to need.
>
> In theory, it should not be possible for snd-usb-audio to
> grab the first slot.
> Are you sure there isn't any other "options snd" line in some
> .conf file?
There are no other files in /etc/modprobe.d, and no /etc/modprobe.conf
file. There is a /lib/modprobe.d directory, although such a directory
isn't mentioned in the relevant man pages, but it's empty anyway.
> Anyway, that slots options specifies only two slots.
> If you have five devices, it's a better idea to specify five slots.
What I have is three devices that always exist, one of which is the
Hifiberry DAC that I want to use, and the others are the PWM audio and the
HDMI audio. Then there are the unknown number of MIDI devices that someone
might plug in. I tried specifying various cards_limit values. I tried the
following, and nothing changed:
options snd cards_limit=8 \
slots=snd-soc-hifiberry-dacplus,vc4,snd-bcm2835,snd-usb-audio
(vc4 is the HDMI, apparently).
This is really behaving as though "snd" isn't the right device name to
address the slots option to.
--
Ciao, Paul D. DeRocco
Paul mailto:pderocco@xxxxxxxxxxxxx
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