aplay won't play on any second sound card

aplay won't play on any second sound card

[John Covici]

Using the rc2 aplay, it doesn't honor -c 1 at all, just plays on card
0.  I even changed the aliases around so what was card1 is now 0, but
aplay still only plays on card 0.

-- 
         John Covici
         covici@ccs.covici.com


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Re: aplay won't play on any second sound card

[Patrick Shirkey]

John Covici wrote:
> Using the rc2 aplay, it doesn't honor -c 1 at all, just plays on card
> 0.  I even changed the aliases around so what was card1 is now 0, but
> aplay still only plays on card 0.
> 

aplay -D hw:0,0 --> card 0 device 0

aplay -D hw:1,0 --> card 1 device 0 etc...

-d is for duration of play.

-- 
Patrick Shirkey - Boost Hardware Ltd.
For the discerning hardware connoisseur
Http://www.boosthardware.com
Http://www.boosthardware.com/LAU/guide/
========================================



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autodetection at install

[Patrick Shirkey]

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I have a small perl script which I am working on. The idea is to autodetect
a card/s and create a modules.conf based on that either at configure or as
a seperate process.

Can anyone who is more fluent in perl give me a hint as to how I can 
compare the output of list_pci to list_modules and return the correct 
card name and module?

The script has two subs. They just parse the /proc/pci and the INSTALL 
file to get the current output. It has to be run from the alsa-driver dir.


-- 
Patrick Shirkey - Boost Hardware Ltd.
For the discerning hardware connoisseur
Http://www.boosthardware.com
Http://www.boosthardware.com/LAU/guide/
========================================

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sub list_pci {

	open (FILE, "/proc/pci") 
	or die "Cannot open /proc/pci. \n Do you have permission to access this file?";
   
    for $linepci (<FILE>) {
	
	if ($linepci =~ /Multimedia audio controller/g) {
   	print $linepci;
	}
    }

#    close FILE;

}

sub list_modules {

	open (FILE, "INSTALL") 
	or die "Cannot open INSTALL. \n Do you have permission to access this file?";
   
    	for $linemodule (<FILE>) {

	if ($linemodule =~ /\.o$/) {
#		print  $linemodule;
		    	while (<>) {
				foreach $word ( split ) { 
	    				# do something with $word here
	   				print "$linemodule\n" ;
					} 
    				}  
#		print  $linemodule;

		}
    	}

#    close FILE;
}


# Output to shell

list_modules();

print "\n The modules for the following card/s can be found in the above.\n If your card is not listed below it means it is a PNP (very old)\n or USB card and this script cannot find it.\n\n The modules for ALSA USB support are: \n\n \tsnd-usb-audio\n \tsnd-usb-midi\n\n";

print " These are the cards found on your system:\n\n";
list_pci();
print "\n";

Re: autodetection at install

[Paul Davis]

>I have a small perl script which I am working on. The idea is to autodetect
>a card/s and create a modules.conf based on that either at configure or as
>a seperate process.

IIRC, this has already been written, but its not up-to-date. its in
the alsa-conf CVS module.

--p


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autodetection at install

[Patrick Shirkey]

[-- Attachment #1: Type: text/plain, Size: 718 bytes --]

Try that again. after saving this time :)

I have a small perl script which I am working on. The idea is to autodetect
a card/s and create a modules.conf based on that either at configure or as
a seperate process.

Can anyone who is more fluent in perl give me a hint as to how I can
compare the output of list_pci to list_modules and return the correct
card name and module?

The script has two subs. They just parse the /proc/pci and the INSTALL
file to get the current output. It has to be run from the alsa-driver dir.


-- 
Patrick Shirkey - Boost Hardware Ltd.
For the discerning hardware connoisseur
Http://www.boosthardware.com
Http://www.boosthardware.com/LAU/guide/
========================================


[-- Attachment #2: autocard --]
[-- Type: text/plain, Size: 901 bytes --]



sub list_pci {

	open (FILE, "/proc/pci") 
	or die "Cannot open /proc/pci. \n Do you have permission to access this file?";
   
    for $linepci (<FILE>) {
	
	if ($linepci =~ /Multimedia audio controller/g) {
   	print $linepci;
	}
    }

#    close FILE;

}

sub list_modules {

	open (FILE, "INSTALL") 
	or die "Cannot open INSTALL. \n Do you have permission to access this file?";
   
    	for $linemodule (<FILE>) {

		if ($linemodule =~ /\.o$/) {
			print  $linemodule;
		}
    	}

#    close FILE;
}


# Output to shell

list_modules();

print "\n The modules for the following card/s can be found in the above.\n If your card is not listed below it means it is a PNP (very old)\n or USB card and this script cannot find it.\n\n The modules for ALSA USB support are: \n\n \tsnd-usb-audio\n \tsnd-usb-midi\n\n";

print " These are the cards found on your system:\n\n";
list_pci();
print "\n";