>Please give me some suggestions about how to build a control interface >for this thing. The card has Ni inputs and No ouputs. It can route any >input to any number of outputs and each connection have a different >gain. e.g: > > ---50%----- Out0 > / >In0 ---30%----- Out3 > \ / > \ -60%--- > X > / -100%---- Out4 > / / >In5----10%----
the hammerfall HDSP series are the same. there are 2 questions: 1) what ALSA API to use, and how to use it? 2) what would a GUI look like? for (2), i suggest you *carefully* study RME's totalmix application, a version of which will soon be available for linux. for (1), we use the control API but use it in a slightly unorthodox way. the control API normally is used to set control values in a simple 1:1 mapping between a control parameter and its new value. instead, we use 2 parameters (the source and the destination) and 1 value (the gain level). this does mean that alsactl can't handle it correctly, but so far no better suggestion has arisen. the hdsp series would have 1500+ control elements if we used the 1:1 method. >How have I to call a switch that selects SPDIFCoax/SPDIFOpt/ADAT ? just use the control API. there is no standard name for such a switch. btw, what h/w is this? ------------------------------------------------------- This SF.net email is sponsored by: The Definitive IT and Networking Event. Be There! NetWorld+Interop Las Vegas 2003 -- Register today! http://ads.sourceforge.net/cgi-bin/redirect.pl?keyn0001en _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
