Date: Sun, 30 Apr 2017 11:34:22 +0200 From: Alexander Leidinger <Alexander@leidinger.net> To: usb@freebsd.org Subject: Question about usb audio device - how to select output connector Message-ID: <20170430113422.Horde.7udwHoKOQOINbeW7AxByIRW@webmail.leidinger.net>
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Hi,
I had a look at snd_uaudio and there I don't find the info I look for.
What I want to do is to have 6 chanel (5.1) SPDIF output. What I don't=20=
=20
understand=20is how to select the connectors. To my understanding the=20=20
soundsystem=20only sees a line out and a line in, but not all the other=20=
=20
connectors.=20Looking at the output of sysctl (dev.pcm, dev.uaudio and=20=
=20
hw.snd)=20doesn't give me a hint either.
What I have:
---snip---
ugen5.2: <Creative Technology SB Live 24-bit External> at usbus5
uaudio0 on uhub4
uaudio0: <Creative Technology SB Live 24-bit External, class 0/0, rev=20=20
1.10/1.00,=20addr 2> on usbus5
uaudio0: Play: 48000 Hz, 4 ch, 24-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Play: 44100 Hz, 4 ch, 24-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Record: 96000 Hz, 2 ch, 24-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Record: 48000 Hz, 2 ch, 24-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Record: 44100 Hz, 2 ch, 24-bit S-LE PCM format, 2x8ms buffer.
uaudio0: No MIDI sequencer.
pcm5: <USB audio> on uaudio0
uaudio0: No HID volume keys found.
---snip---
What the sound subsystem sees:
---snip---
# cat /dev/sndstat
FreeBSD Audio Driver (64bit 2009061500/amd64)
Installed devices:
pcm0: <Realtek ALC889 (Rear Analog 7.1/2.0)> on hdaa0 kld snd_hda=20=20
(1p:1v/1r:1v)=20default
snddev flags=3D0x2e6<AUTOVCHAN,SOFTPCMVOL,BUSY,MPSAFE,REGISTERED,V=
PC>
[pcm0:play:dsp0.p0]: spd 48000, fmt 0x00200010, flags=20=20
0x00002100,=200x00000004
interrupts 62, underruns 0, feed 62, ready 0=20=20
[b:4096/2048/2|bs:4096/2048/2]
=20 channel flags=3D0x2100<BUSY,HAS_VCHAN>
{userland} -> feeder_mixer(0x00200010) -> {hardware}
pcm0:play:dsp0.p0[pcm0:virtual:dsp0.vp0]: spd 44100/48000,=20=20
fmt=200x00201000/0x00200010, flags 0x10000000, 0x0000002b
interrupts 0, underruns 0, feed 0, ready 0 [b:0/0/0|bs:131072/4096=
/32]
channel flags=3D0x10000000<VIRTUAL>
{userland} -> feeder_root(0x00201000) ->=20=20
feeder_format(0x00201000=20-> 0x00200010) -> feeder_volume(0x00200010)=20=
=20
->=20feeder_rate(0x00200010 q:1 44100 -> 48000) -> {hardware}
[pcm0:record:dsp0.r0]: spd 48000, fmt 0x00200010, flags=20=20
0x00002100,=200x00000005
interrupts 0, overruns 0, feed 0, hfree 4096, sfree 4096=20=20
[b:4096/2048/2|bs:4096/2048/2]
=20 channel flags=3D0x2100<BUSY,HAS_VCHAN>
{hardware} -> feeder_root(0x00200010) ->=20=20
feeder_mixer(0x00200010)=20-> {userland}
pcm0:record:dsp0.r0[pcm0:virtual:dsp0.vr0]: spd 8000, fmt=20=20
0x00100008,=20flags 0x10000000, 0x00000000
interrupts 0, overruns 0, feed 0, hfree 0, sfree 0 [b:0/0/0|bs:0/0=
/0]
channel flags=3D0x10000000<VIRTUAL>
{hardware} -> feeder_root(0x00000000) -> {userland}
pcm1: <Realtek ALC889 (Front Analog)> on hdaa0 kld snd_hda (1p:1v/2r:1v)
snddev flags=3D0x2e6<AUTOVCHAN,SOFTPCMVOL,BUSY,MPSAFE,REGISTERED,V=
PC>
[pcm1:play:dsp1.p0]: spd 48000, fmt 0x00200010, flags=20=20
0x00002100,=200x00000004
interrupts 128, underruns 0, feed 128, ready 0=20=20
[b:4096/2048/2|bs:4096/2048/2]
=20 channel flags=3D0x2100<BUSY,HAS_VCHAN>
{userland} -> feeder_mixer(0x00200010) -> {hardware}
pcm1:play:dsp1.p0[pcm1:virtual:dsp1.vp0]: spd 22050/48000,=20=20
fmt=200x00201000/0x00200010, flags 0x10000000, 0x0000002b
interrupts 0, underruns 0, feed 0, ready 0 [b:0/0/0|bs:65536/2048/=
32]
channel flags=3D0x10000000<VIRTUAL>
{userland} -> feeder_root(0x00201000) ->=20=20
feeder_format(0x00201000=20-> 0x00200010) -> feeder_volume(0x00200010)=20=
=20
->=20feeder_rate(0x00200010 q:1 22050 -> 48000) -> {hardware}
[pcm1:record:dsp1.r0]: spd 48000, fmt 0x00200010, flags=20=20
0x00002100,=200x00000005
interrupts 0, overruns 0, feed 0, hfree 4096, sfree 4096=20=20
[b:4096/2048/2|bs:4096/2048/2]
=20 channel flags=3D0x2100<BUSY,HAS_VCHAN>
{hardware} -> feeder_root(0x00200010) ->=20=20
feeder_mixer(0x00200010)=20-> {userland}
[pcm1:record:dsp1.r1]: spd 8000, fmt 0x00100008, flags=20=20
0x00000000,=200x00000000
interrupts 0, overruns 0, feed 0, hfree 65536, sfree 0=20=20
[b:65536/32768/2|bs:0/0/0]
=20 channel flags=3D0x0
{hardware} -> feeder_root(0x00000000) -> {userland}
pcm1:record:dsp1.r0[pcm1:virtual:dsp1.vr0]: spd 8000, fmt=20=20
0x00100008,=20flags 0x10000000, 0x00000000
interrupts 0, overruns 0, feed 0, hfree 0, sfree 0 [b:0/0/0|bs:0/0=
/0]
channel flags=3D0x10000000<VIRTUAL>
{hardware} -> feeder_root(0x00000000) -> {userland}
pcm2: <Realtek ALC889 (Rear Digital)> on hdaa0 kld snd_hda (1p:1v/0r:0v)
snddev=20=20
flags=3D0x2e7<SIMPLEX,AUTOVCHAN,SOFTPCMVOL,BUSY,MPSAFE,REGISTERED,VPC>
[pcm2:play:dsp2.p0]: spd 48000, fmt 0x00200010, flags=20=20
0x00006100,=200x00000004
interrupts 133, underruns 0, feed 133, ready 0=20=20
[b:4096/2048/2|bs:4096/2048/2]
=20 channel flags=3D0x6100<BUSY,HAS_VCHAN,VCHAN_PASSTHROUGH>
{userland} -> feeder_mixer(0x00200010) -> {hardware}
pcm2:play:dsp2.p0[pcm2:virtual:dsp2.vp0]: spd 22050/48000,=20=20
fmt=200x00201000/0x00200010, flags 0x10000000, 0x0000002b
interrupts 0, underruns 0, feed 0, ready 0 [b:0/0/0|bs:65536/2048/=
32]
channel flags=3D0x10000000<VIRTUAL>
{userland} -> feeder_root(0x00201000) ->=20=20
feeder_format(0x00201000=20-> 0x00200010) -> feeder_volume(0x00200010)=20=
=20
->=20feeder_rate(0x00200010 q:1 22050 -> 48000) -> {hardware}
pcm3: <NVIDIA (0x001c) (HDMI/DP 8ch)> on hdaa1 kld snd_hda (1p:1v/0r:0v)
snddev=20=20
flags=3D0x2e7<SIMPLEX,AUTOVCHAN,SOFTPCMVOL,BUSY,MPSAFE,REGISTERED,VPC>
[pcm3:play:dsp3.p0]: spd 48000, fmt 0x00200010, flags=20=20
0x00006100,=200x00000004
interrupts 153, underruns 0, feed 153, ready 0=20=20
[b:4096/2048/2|bs:4096/2048/2]
=20 channel flags=3D0x6100<BUSY,HAS_VCHAN,VCHAN_PASSTHROUGH>
{userland} -> feeder_mixer(0x00200010) -> {hardware}
pcm3:play:dsp3.p0[pcm3:virtual:dsp3.vp0]: spd 22050/48000,=20=20
fmt=200x00201000/0x00200010, flags 0x10000000, 0x0000002b
interrupts 0, underruns 0, feed 0, ready 0 [b:0/0/0|bs:65536/2048/=
32]
channel flags=3D0x10000000<VIRTUAL>
{userland} -> feeder_root(0x00201000) ->=20=20
feeder_format(0x00201000=20-> 0x00200010) -> feeder_volume(0x00200010)=20=
=20
->=20feeder_rate(0x00200010 q:1 22050 -> 48000) -> {hardware}
pcm4: <NVIDIA (0x001c) (HDMI/DP 8ch)> on hdaa1 kld snd_hda (1p:1v/0r:0v)
snddev=20=20
flags=3D0x2e7<SIMPLEX,AUTOVCHAN,SOFTPCMVOL,BUSY,MPSAFE,REGISTERED,VPC>
[pcm4:play:dsp4.p0]: spd 48000, fmt 0x00200010, flags=20=20
0x00006100,=200x00000004
interrupts 437, underruns 0, feed 437, ready 0=20=20
[b:4096/2048/2|bs:4096/2048/2]
=20 channel flags=3D0x6100<BUSY,HAS_VCHAN,VCHAN_PASSTHROUGH>
{userland} -> feeder_mixer(0x00200010) -> {hardware}
pcm4:play:dsp4.p0[pcm4:virtual:dsp4.vp0]: spd 22050/48000,=20=20
fmt=200x00201000/0x00200010, flags 0x10000000, 0x0000002b
interrupts 0, underruns 0, feed 0, ready 0 [b:0/0/0|bs:65536/2048/=
32]
channel flags=3D0x10000000<VIRTUAL>
{userland} -> feeder_root(0x00201000) ->=20=20
feeder_format(0x00201000=20-> 0x00200010) -> feeder_volume(0x00200010)=20=
=20
->=20feeder_rate(0x00200010 q:1 22050 -> 48000) -> {hardware}
pcm5: <USB audio> at ? kld snd_uaudio (1p:1v/1r:1v)
snddev flags=3D0x2e2<AUTOVCHAN,BUSY,MPSAFE,REGISTERED,VPC>
[pcm5:play:dsp5.p0]: spd 48000, fmt 0x00200010/0x00410000,=20=20
flags=200x00002100, 0x00000046
interrupts 0, underruns 0, feed 0, ready 0=20=20
[b:9216/4608/2|bs:4096/2048/2]
=20 channel flags=3D0x2100<BUSY,HAS_VCHAN>
{userland} -> feeder_mixer(0x00200010) ->=20=20
feeder_format(0x00200010=20-> 0x00201000) -> feeder_matrix(2.0 -> 4.0)=20=
=20
->=20feeder_format(0x00401000 -> 0x00410000) -> {hardware}
pcm5:play:dsp5.p0[pcm5:virtual:dsp5.vp0]: spd 8000, fmt=20=20
0x00100008,=20flags 0x10000000, 0x00000000
interrupts 0, underruns 0, feed 0, ready 0 [b:0/0/0|bs:0/0/0]
channel flags=3D0x10000000<VIRTUAL>
{userland} -> feeder_root(0x00000000) -> {hardware}
[pcm5:record:dsp5.r0]: spd 48000, fmt 0x00200010/0x00210000,=20=20
flags=200x00002100, 0x00000007
interrupts 0, overruns 0, feed 0, hfree 4608, sfree 4096=20=20
[b:4608/2304/2|bs:4096/2048/2]
=20 channel flags=3D0x2100<BUSY,HAS_VCHAN>
=20=20=20=20=20 {hardware} -> feeder_root(0x00210000) ->=20=20
feeder_format(0x00210000=20-> 0x00200010) -> feeder_mixer(0x00200010) ->=20=
=20
{userland}
=20 pcm5:record:dsp5.r0[pcm5:virtual:dsp5.vr0]: spd 8000, fmt=20=20
0x00100008,=20flags 0x10000000, 0x00000000
interrupts 0, overruns 0, feed 0, hfree 0, sfree 0 [b:0/0/0|bs:0/0=
/0]
channel flags=3D0x10000000<VIRTUAL>
{hardware} -> feeder_root(0x00000000) -> {userland}
No devices installed from userspace.
---snip---
What I have in /dev:
---snip---
# ll /dev/(dsp|mix|snd)*
crw-rw-rw- 1 root wheel 0xed 29 Apr. 17:07 /dev/dsp0.0
crw-rw-rw- 1 root wheel 0x126 29 Apr. 16:59 /dev/dsp1.0
crw-rw-rw- 1 root wheel 0x127 29 Apr. 16:59 /dev/dsp1.2
crw-rw-rw- 1 root wheel 0x124 29 Apr. 16:59 /dev/dsp2.0
crw-rw-rw- 1 root wheel 0x125 29 Apr. 16:59 /dev/dsp2.2
crw-rw-rw- 1 root wheel 0x122 29 Apr. 16:59 /dev/dsp3.0
crw-rw-rw- 1 root wheel 0x123 29 Apr. 16:59 /dev/dsp3.2
crw-rw-rw- 1 root wheel 0x120 29 Apr. 16:59 /dev/dsp4.0
crw-rw-rw- 1 root wheel 0x121 29 Apr. 16:59 /dev/dsp4.2
crw-rw-rw- 1 root wheel 0x79 25 Apr. 21:35 /dev/mixer0
crw-rw-rw- 1 root wheel 0x7e 25 Apr. 21:35 /dev/mixer1
crw-rw-rw- 1 root wheel 0x83 25 Apr. 21:35 /dev/mixer2
crw-rw-rw- 1 root wheel 0x85 25 Apr. 21:35 /dev/mixer3
crw-rw-rw- 1 root wheel 0x86 25 Apr. 21:35 /dev/mixer4
crw-rw-rw- 1 root wheel 0x10b 29 Apr. 16:53 /dev/mixer5
crw-r--r-- 1 root wheel 0x73 25 Apr. 21:35 /dev/sndstat
---snip---
Mixer settings for uaudio:
---snip---
# mixer -f /dev/mixer5
Mixer vol is currently set to 75:75
Mixer pcm is currently set to 75:75
Mixer line is currently set to 75:75
---snip---
Connectors on the hardware:
- front - optical out
- front - mix in
- front - phones
- rear - spdif out
- rear - center/sub out
- rear - rear
- rear - front
- rear - line in
- rear - DIN
Buttons on the hardware (for completeness, not important for now):
- output volume (some kind of slider)
- input volume (some kind of slider)
- CMSS (in Windows some kind of channel-upmix)
Bye,
Alexander.
--=20
http://www.Leidinger.net=20Alexander@Leidinger.net: PGP 0x8F31830F9F2772BF
http://www.FreeBSD.org netchild@FreeBSD.org : PGP 0x8F31830F9F2772BF
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