[LAU] Hoontech DSP24 with DSP C-Port 2000: how do I use the line in/out of the pci card in JACK?

[Ralf Mardorf]

On Wed, 4 Oct 2017 12:14:07 +0300, Athanasios Silis wrote:
>So if you are an owner of ice1712 chipset, please do not skip this
>email :)

Hi,

ok, but I don't know how to help you, one reason is, that I never ever
would install pulseaudio, another reason is that for audio I only use
one card at a time and appart from this the envy24 card is used for
MIDI only, if at all.

>not sure if this is correct, but I get to see all the channels I
>expect at least (which is weird because here I see that device 2:0
>apparently has only 1p and 1c port ?!?!?!? Can someone explain?)

Much likely it means that one "playback device" and one "capture device"
are provided. What makes you think the info is related to the available
ports?

I get...

[rocketmouse at archlinux ~]$ grep -v HDMI /proc/asound/pcm
00-00: RME AIO : RME AIO : playback 1 : capture 1
01-00: ICE1712 multi : ICE1712 multi : playback 1 : capture 1
04-00: USB Audio : USB Audio : playback 1 : capture 1
[rocketmouse at archlinux ~]$ aplay -l | grep -v HDMI | grep -vi sub
**** List of PLAYBACK Hardware Devices ****
card 0: HDSPMx579bcc [RME AIO_579bcc], device 0: RME AIO [RME AIO]
card 1: EWX2496 [TerraTec EWX24/96], device 0: ICE1712 multi [ICE1712 multi]
card 4: USB [Scarlett 18i20 USB], device 0: USB Audio [USB Audio]
[rocketmouse at archlinux ~]$ arecord -l | grep -v HDMI | grep -vi sub
**** List of CAPTURE Hardware Devices ****
card 0: HDSPMx579bcc [RME AIO_579bcc], device 0: RME AIO [RME AIO]
card 1: EWX2496 [TerraTec EWX24/96], device 0: ICE1712 multi [ICE1712 multi]
card 4: USB [Scarlett 18i20 USB], device 0: USB Audio [USB Audio]

...for all cards it claims "playback 1" and "capture 1". However
nowhere "port" is mentioned. If you would assume "device" instead of
"port", it would make sense.

If I run Firefox to play a youtube video, so that apulse, a
pulseaudio emulation for ALSA does grab the device and then try to
launch...

[rocketmouse at archlinux ~]$ pacman -Q jack2
jack2 1.9.10.r293.gc44a220f-1

...by...

[rocketmouse at archlinux ~]$ jackd -dalsa -dhw:HDSPMx579bcc -r44100 -p128 -n2
[snip]
ATTENTION: The playback device "hw:HDSPMx579bcc" is already in use. Please stop the application using it and run JACK again
Cannot initialize driver
JackServer::Open failed with -1
Failed to open server

... jack informs me that something else already grabbed the device.

Regards,
Ralf