[alsa-devel] softvol plugin question

[Will Wagner]

Gustavo da Silva Serra wrote:
> I had this problem with alsamixer itself. It doesn't appear until I call 
> "alsactl restore". To automate I added this line to /etc/rc.local.
> 

Thanks, that fixed it.

As an aside I had to patch alsa-utils/alsactl/names.c to make it work 
with my alsa lib as I have disabled midi & seq support. The patch is 
below, the problem with it is that alsa-lib does not expose in a header 
anywhere what is enabled/disabled (alsa-lib/include/config.h appears to 
be a private header that does not get installed).

--- alsa-utils-1.0.16/alsactl/names.c	2008-05-07 19:03:59.000000000 +0100
+++ alsa-utils-1.0.16/alsactl/names.c.new	2008-05-07 19:03:53.000000000 
+0100
@@ -282,6 +282,7 @@ static int probe_pcm(snd_config_t *confi
  	return 0;
  }

+#ifdef BUILD_RAWMIDI
  static int probe_rawmidi_virtual(snd_config_t *config,
  				 const char *name, const char *comment)
  {
@@ -411,6 +412,7 @@ static int probe_rawmidi(snd_config_t *c
  		return err;
  	return 0;
  }
+#endif // BUILD_RAWMIDI

  static int probe_timers(snd_config_t *config)
  {
@@ -473,6 +475,7 @@ static int probe_timer(snd_config_t *con
  	return 0;
  }

+#ifdef BUILD_SEQ
  static int probe_seq(snd_config_t *config)
  {
  	int err;
@@ -492,15 +495,20 @@ static int probe_seq(snd_config_t *confi
  		return err;
  	return 0;
  }
+#endif

  typedef int (probe_fcn)(snd_config_t *config);

  static probe_fcn * probes[] = {
  	probe_ctl,
  	probe_pcm,
+#ifdef BUILD_RAWMIDI
  	probe_rawmidi,
+#endif
  	probe_timer,
+#ifdef BUILD_SEQ
  	probe_seq,
+#endif
  	NULL
  };



-- 
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Will Wagner                                     will_wagner at carallon.com
Senior Project Engineer                  Office Tel: +44 (0)20 7371 2032
Carallon Ltd, Studio G20, Shepherds Building, Rockley Rd, London W14 0DA
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