ALSA: update error-codes for HW initialization.

diff --git a/libs/backends/alsa/zita-alsa-pcmi.cc b/libs/backends/alsa/zita-alsa-pcmi.cc
index 3c271b69073806f997e5dc4176ef28199dcf0ef3..d3be95e0e4db4791f90f846154754df497cb8cec 100644 (file)
--- a/libs/backends/alsa/zita-alsa-pcmi.cc
+++ b/libs/backends/alsa/zita-alsa-pcmi.cc
@@ -728,7 +728,7 @@ int Alsa_pcmi::set_hwpar (snd_pcm_t *handle,  snd_pcm_hw_params_t *hwpar, const
        {
                if (_debug & DEBUG_INIT) fprintf (stderr, "Alsa_pcmi: can't set %s sample rate to %u.\n",
                                sname, _fsamp);
-               return -1;
+               return -3;
        }
        snd_pcm_hw_params_get_channels_max (hwpar, nchan);
        if (*nchan > 1024)
@@ -758,19 +758,19 @@ int Alsa_pcmi::set_hwpar (snd_pcm_t *handle,  snd_pcm_hw_params_t *hwpar, const
        {
                if (_debug & DEBUG_INIT) fprintf (stderr, "Alsa_pcmi: can't set %s period size to %lu.\n",
                                sname, _fsize);
-               return -1;
+               return -4;
        }
        if (snd_pcm_hw_params_set_periods (handle, hwpar, _nfrag, 0) < 0)
        {
                if (_debug & DEBUG_INIT) fprintf (stderr, "Alsa_pcmi: can't set %s periods to %u.\n",
                                sname, _nfrag);
-               return -1;
+               return -5;
        }
        if (snd_pcm_hw_params_set_buffer_size (handle, hwpar, _fsize * _nfrag) < 0)
        {
                if (_debug & DEBUG_INIT) fprintf (stderr, "Alsa_pcmi: can't set %s buffer length to %lu.\n",
                                sname, _fsize * _nfrag);
-               return -1;
+               return -4;
        }
        if (snd_pcm_hw_params (handle, hwpar) < 0)
        {