Hi, As you may know the hdsp has a variable number of channels depending on the sample rate. The card's internal routing is controlled by a matrix mixer. For convenience simple mixer ctls are defined at card initialization. When the number of channels change, I flag the .access field of the unused ctls with SNDRV_CTL_ELEM_READ and SNDRV_CTL_ELEM_INACTIVE. It seems to work fine with amixer (amixer controls doesn't show anymore the unused channels), but alsamixer gives the following error: function snd_mixer_load failed: Invalid argument. Any idea on what is going wrong ?
Another point: the matrix mixer is now (with patch II from Paul) read/write. In write mode it takes 3 parameters: source,destination,gain. With the amixer patch I submitted some days ago it is possible to actually read it, passing source and destination channels as parameters to the cget option. In the driver, the return values use the same structure as the parameters. Should I respect the parameters index (returning the gain value in value[2]) or should I consider that return values start at value[0] ? Thomas ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
