Re: [alsa-devel] alsactl adds volume controls?

Colin Guthrie wrote:

What is odd about this tho', is that the flag for min is mute (0x10000) is checked on tlv[3] which is also used here for the "max" value.

SND_CTL_TLVT_DB_SCALE uses a flag in tlv[3] to indicate min-is-mute, but SND_CTL_TLVT_DB_MINMAX has a variant SND_CTL_TLVT_DB_MINMAX_MUTE. (The HDA driver uses DB_SCALE).

•   if (db_gain <= min) {
            *value = rangemin;
  

•           if (xdir > 0 && (tlv[3] & 0x10000) && db_gain > SND_CTL_TLV_DB_GAIN_MUTE)
  

•                   *value = rangemin + 1;
  

This should go at the same place in the SND_CTL_TLVT_DB_SCALE branch.

Regards, Clemens