Hi, This is the followup question to the earlier discussion //www.freelists.org/post/wdmaudiodev/Changing-device-format,3 I have an audio device that works correctly on XP. Recently I started to make it work on Windows 7. The driver for the device is based on WavePCI Miniport. When driver is loaded, it advetizes it capabilities (for example) 8 bit initially. However once loaded, device wants to change the capability to either 16 bit or 24 bit. on XP, I am handling this by added Datarange intersection and SetFormat handler. However this doesn't work in Windows 7. I followed suggestion given in //www.freelists.org/post/wdmaudiodev/Changing-device-format,3and added Event handler "PCAUTOMATION_TABLE" for one of the nodes. As per the documentation on MSDN, my event handler should be called by port driver so that IPortEvents::AddEventToEventList can be called by our miniport driver. However my eventhandler is never getting called by port driver. I appreacite any help regarding this. Am I missing any step required in Windows 7 Thanks Kishore ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.com/
