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Old 04-01-2015, 01:18 AM   #1
lucmove
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Registered: Aug 2005
Location: Brazil
Distribution: Debian
Posts: 1,452

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How do I query amixer?


I want to get the current volume, for display with osdctl.

Code:
~> amixer scontrols
Simple mixer control 'Master',0
Simple mixer control 'Headphone',0
Simple mixer control 'Speaker',0
Simple mixer control 'PCM',0
Simple mixer control 'Mic',0
Simple mixer control 'Mic Boost',0
Simple mixer control 'Beep',0
Simple mixer control 'Capture',0
Simple mixer control 'Auto-Mute Mode',0
Simple mixer control 'Digital',0
~> amixer cget Master
Wrong control identifier: Master
~> amixer cget Master 0
Wrong control identifier: Master
~> amixer cget PCM 0
Wrong control identifier: PCM
~> amixer cget PCM
Wrong control identifier: PCM
Dammit.

'amixer get Master' gives me what I want, but it's verbose and I'll have to write a script to parse and isolate the exact value. I can do that, but surely I am using the cget command wrong, and maybe it will make it all simpler.

Last edited by lucmove; 04-01-2015 at 01:21 AM.
 
Old 04-01-2015, 01:39 AM   #2
dijetlo
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Registered: Jan 2009
Location: RHELtopia....
Distribution: Solaris 11.2/Slackware/RHEL/
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awk -F"[][]" '/dB/ { print $2 }' <(amixer sget Master)

---------- Post added 04-01-15 at 02:40 AM ----------

Let's try that again...

Quote:
awk -F"[][]" '/dB/ { print $2 }' <(amixer sget Master)


---------- Post added 04-01-15 at 02:40 AM ----------

Let's try that again...

Quote:
awk -F"[][]" '/dB/ { print $2 }' <(amixer sget Master)
 
Old 04-01-2015, 02:04 AM   #3
dijetlo
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Registered: Jan 2009
Location: RHELtopia....
Distribution: Solaris 11.2/Slackware/RHEL/
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Downloaded and installed AlienBobs Plasma desktop, was running like a champ, very light and responsive, however this double post thing started after I switched to it, if you would be so kind as to let me test this in fluxbox and see if the double post issue is related to the plasma environment...
 
Old 04-01-2015, 07:26 AM   #4
lucmove
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Registered: Aug 2005
Location: Brazil
Distribution: Debian
Posts: 1,452

Original Poster
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Thanks, but I already knew how to parse the verbose output. I still don't know how to use the 'amixer cget' command.
 
Old 04-01-2015, 08:05 AM   #5
dijetlo
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Registered: Jan 2009
Location: RHELtopia....
Distribution: Solaris 11.2/Slackware/RHEL/
Posts: 1,491
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Rep: Reputation: Disabled
Sorry, looked at your question and assumed the 'c' was a typo.
Quote:
cget - A utility that retrieves a specified file from each node of a cluster and places it into the specified target directory.
Once you get the amixer.state from each member of the cluster, you'll still have to grind it for the data you want.
 
  


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