[Alsa-user] Re: Has anybody ever gotten an PDAudioCF to work on x86 Linux ? (ALMOST SOLVED)

[Ron Flory]

OK, after a LOT of digging and help from the developers the last
major hurdle was overcome.
 Apparently one must manually select either the optical or
electrical input of the PDAudioCF card. (this was not documented
anywhere).
 I threw together a simple script that automatically determines
where the pdaudiocf card is, then selects the proper input.  I
feel such a script should be part of the alsa pdaudiocf driver
package.
 Its easy enough for newbies and 'non-linux' users. While logged
in as the 'root' user just cut and paste it into a file called
'pdacf_isel.sh', copy it to a directory in your search path such
as /usr/local/bin and make it world executable
( chmod 0755 pdacf_isel.sh ).  MAKE SURE '#!/bin/csh' (BELOW) IS
ON THE VERY FIRST LINE !!!!!!!!!!
#!/bin/csh

if ( ($1 == "") || ($1 < '0') || ($1 > '1') ) then
   echo "usage: pdacf_isel.sh <0..1>"
   echo "  where 0 = optical"
   echo "        1 = coax electrical"
   exit 1
endif
# ***** assume pdaudiocf card not present *****
@ card = -1
# ***** Locate pdaudiocf card, if present *****
foreach x ( 0 1 2 3 4 5 6 7 )
   if ( -e '/proc/asound/card'$x'/pdaudiocf' ) then
      @ card = $x
      break
   endif
end
if ( $card < 0 ) then
   echo "PdAudioCF not found..."
   exit 1
endif
echo "pdaudiocf is card"$card

amixer -c $card cset iface=PCM,name='AK4117 Input Select' $1



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