> > Paul D. DeRocco wrote: > > Can this parameter be supplied on the kernel command line > > as snd.slots=...? > From: Clemens Ladisch via Alsa-user > > Yes; this is possible for all parameters. My first try was to leave snd as a built-in module, and pass the slots parameter via the kernel command line: snd.slots=snd-soc-hifiberry-dacplus,vc4,snd-bcm2835,snd-usb-audio It showed up correctly in /proc/cmdline, but was totally ignored. All of the slots were still wrong. I recompiled the kernel with snd as a module, put the options back into /etc/modprobe.d/alsa.conf, and it worked, basically. However, what I thought was called vc4 (the HDMI sound) didn't get assigned to slot 1. But slot 1 was still reserved, so the two USB MIDI ports took slots 3 and 4, and the HDMI ended up in slot 5. Does anyone know the name of the Raspberry Pi HDMI sound device? udevadm info shows a driver name of "vc4_hdmi" and an id attribute of "vc4hdmi". lsmod only lists "vc4", nothing else with "vc4" in it. alsamixer shows "vc4-hdmi". None of these names in the slots option made any difference. When I read /proc/asound/modules, I get this: 0 snd_soc_hifiberry_dacplus 2 snd_bcm2835 3 snd_usb_audio 4 snd_usb_audio 5 (null) Yet vc4 is indeed a loadable module, according to modinfo. Any ideas why it appears to have no name to ALSA? -- Ciao, Paul D. DeRocco Paul mailto:pderocco@xxxxxxxxxxxxx ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
