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Old 08-28-2006, 07:47 AM   #1
Xplosion
LQ Newbie
 
Registered: Aug 2006
Distribution: SuSE 10.1
Posts: 14

Rep: Reputation: 0
How to use ALSA hooks plugin correctly.


Hello Friends,

I would like to ask if anybody can post a working example on how to use the ALSA hooks plugin in the asound.conf.

I checked http://www.alsa-project.org/alsa-doc...m_plugins.html but it is a little too unspecific for me to get it working.

I would like to setup function such that everytime a pcm is used the "IEC958 Playback Switch" is set (forced) to false.

I am using an Nforce2 integrated sound card.

Thanks

Ulf



This is my current asound.conf

# Override the default output used by ALSA.
# If you do not override the default, your default
# device is identical to the (unmixed) analog device
# shown below. If you prefer mixed and/or digital
# output, uncomment the appropriate four lines below
# (only one slave.pcm line).
pcm.!default {
type plug
## Uncomment the following to use mixed analog by default
#slave.pcm "dmix-analog"
## Uncomment the following to use unmixed digital by default
# slave.pcm "digital-hw"
## Uncomment the following to use mixed digital by default
slave.pcm "dmix-digital"
}

# Alias for analog output on the nForce2 (hw:0,0)
# - This is identical to the device named "default"--which
# always exists and refers to hw:0,0 (unless overridden)
# - Therefore, we can specify "hw:0,0", "default", or "analog"
# to access analog output on the nForce2

pcm.analog {
type plug
slave.pcm "analog-hw"
}

# Control device (mixer, etc.) for the nForce2 card
ctl.analog {
type hw
card 0
}

# Alias for (rate-converted) mixed analog output on the
# nForce2 (hw:0,0)
# - This will accept audio input--regardless of rate--and
# convert to the rate required for the dmix plugin
# (in this case 48000Hz)
pcm.mixed-analog {
type plug
slave.pcm "dmix-analog"
}

#test fuer aoss skype scheint auch so zu helfen.

pcm.dsp0 {
type plug
slave.pcm "dmix-analog"
}

# Control device (mixer, etc.) for the nForce2 card
ctl.mixed-analog {
type hw
card 0
}

# Alias for analog output on the BT headset (hw:1,0)
pcm.headset {
type plug
slave.pcm "headset-hw"
}
# Control device (mixer, etc.) for the BT headset
ctl.headset {
type hw
card 1
}
# Alias for (rate-converted) mixed analog output on the
# headset (hw:1,0)
pcm.mixed-headset {
type plug
slave.pcm "dmix-headset"
}

# Alias for (rate-converted) digital (S/PDIF) output on the
# nForce2 (hw:0,2)
# - This will accept audio input--regardless of rate--and
# convert to the rate required for the S/PDIF hardware
# (in this case 48000Hz)
pcm.digital {
type plug
slave.pcm "digital-hw"
}

# Control device (mixer, etc.) for the nForce2 card
ctl.digital {
type hw
card 0
}

# Alias for mixed (rate-converted) digital (S/PDIF) output on the
# nForce2 (hw:0,2)
# - This will accept audio input--regardless of rate--and
# convert to the rate required for the S/PDIF hardware
# (in this case 48000Hz)
pcm.mixed-digital {
type plug
slave.pcm "dmix-digital"
}

# Control device (mixer, etc.) for the nForce2 card
ctl.mixed-digital {
type hw
card 0
}

# The following devices are not useful by themselves. They
# require specific rates, channels, and formats. Therefore,
# you probably do not want to use them directly. Instead use
# of of the devices defined above.

# Alias for analog output on the nForce2 (hw:0,0)
# Do not use this directly--it requires specific rate,
# channels, and format
pcm.analog-hw {
type hw
card 0
# The default value for device is 0, so no need to specify
}

# Control device (mixer, etc.) for the nForce2 card
ctl.analog-hw {
type hw
card 0
}

# Alias for digital (S/PDIF) output on the nForce2 (hw:0,2)
# Do not use this directly--it requires specific rate,
# channels, and format
pcm.digital-hw {
type hw
card 0
device 2
}

# Control device (mixer, etc.) for the nForce2 card
ctl.digital-hw {
type hw
card 0
}

# Alias for analog output on the BT Headset (hw:1,0)
pcm.headset-hw {
type hw
card 1
device 0
}
# Control device (mixer, etc.) for the BT Headset
ctl.headset-hw {
type hw
card 1
}
# Direct software mixing plugin for analog output on
# the BT headset (hw:1,0)
# Do not use this directly--it requires specific rate,
# channels, and format
pcm.dmix-headset {
type dmix
ipc_key 2234
slave {
pcm "headset-hw"
period_time 0
period_size 1024
buffer_size 4096
rate 44100
}
}

# Direct software mixing plugin for analog output on
# the nForce2 (hw:0,0)
# Do not use this directly--it requires specific rate,
# channels, and format
pcm.dmix-analog {
type dmix
ipc_key 1234
slave {
pcm "analog-hw"
period_time 0
period_size 1024
buffer_size 4096
rate 44100
}
}

# Control device (mixer, etc.) for the nForce2 card
ctl.dmix-analog {
type hw
card 0
}

# Control device (mixer, etc.) for the BT headset
ctl.dmix-headset {
type hw
card 0
}

# Direct software mixing plugin for digital (S/PDIF) output
# on the nForce2 (hw:0,2)
# Do not use this directly--it requires specific rate,
# channels, and format
pcm.dmix-digital {
type dmix
ipc_key 1235
slave {
pcm "digital-hw"
period_time 0
period_size 1024
buffer_size 4096
rate 44100
}
}

# Control device (mixer, etc.) for the nForce2 card
ctl.dmix-digital {
type hw
card 0
}
 
  


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alsa, asoundconf, nforce2


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