Thanks, I attempted to do this same thing a while back, but was unsuccessful. Ross Vandegrift wrote: > Hello, > > I wrote a patch this morning that lets the user define limits on > the number of controls envy24control should display to the user. This > is useful on cards like the Delta44, which only has 4x4 channels - it > provides a cleaner interface in that case. The patch is included below, > and is downloadable from: > http://poplar.seitz.com/~ross/envy24control/envy24control-control-limit.diff > > The changes introduce two new command line options: > -i, --inputs: Use this to define how many HW In channels you'd like > -o, --outputs: Use this to define how many PCM Out channels you'd like > > So for my Delta44, I now use 'envy24control -i 4 -o 4' to only see the > channels I physically have. > > That's about all there is to it. It seems to correctly handle limiting > to fewer channels than physically present as well. Hopefully this can > help out some others as well. > > I'm not subscribed to alsa-devel, so please CC me on any replies from > that list. Thanks! >
