Hello everybody My goal is to change the default format of a USB soundcard by the installation over the inf file. I work with an USB Audio Codec from TI (PCM2904) and for our application we need the default format Stereo, 16 Bit, 44100 Hz. The soundcard installs standardly the standard usb audio device driver with the wdma_usb.inf. My idea was now to modify the wdma_usb.inf according to these two discussions to change the default format: //www.freelists.org/post/wdmaudiodev/sample-rate-control-on-Vista,18 //www.freelists.org/post/wdmaudiodev/USB-audio-changes-in-Vista,7 My problem is that I've no idea where I must place the modifications discussed in the threads above. Or is my idea to change the wdma_usb.inf totally wrong? Is there another way to change the format over a seperate inf file? Thanks for your answers and best regards Ueli Giger ****************** 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/