- Implement registering source / destination lines + controls of alternative mixers
- Implement support function for retrieving mixer by name
svn path=/branches/audio-bringup/; revision=49970
- Fix error message when mmixer library has failed to initialize
- Remove device handle from MIXER_INFO as a mixer can span over more than one device (i.e. mixer, wave)
- Add device handle to mixer control struct
- Store mixer controls in list than in array. Will later be used to add hacks (i.e wave line must have volume controls etc)
- Add reserved member to topology pin struct and mark used pins as reserved. It is then used to add alternative mixers destination lines
svn path=/branches/audio-bringup/; revision=49967
