Dear Jeff, Can you explain your scenario? Sincerely, Hakon Strande PM Integrated, Internal, External, and Wireless Audio Devices MediaTech/DMD/Windows Client/Microsoft ________________________________ From: wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Jeff Claar Sent: Tuesday, March 07, 2006 4:13 PM To: wdmaudiodev@xxxxxxxxxxxxx Subject: [wdmaudiodev] Determining the master volume control node Hi everyone, I'm trying to adjust the volume settings for a piece of hardware from another driver. Basically I'm trying to get the master volume node from another driver. I have the Wave driver open, but I'm thinking that I need to get the topology filter and parse it to determine the master volume node. Is there a simpler way to do this? It looks like sysaudio already has all this information, but I'm not sure how to get at it. Thanks, Jeff