Hi I writted a driver for an USB Audio Device base on PortCls. I tested it by HCT 11.2 in Windows XP SP1. I pass most test item. But in test item KS Audio Position Accuracy. It say my device is an USB Device and can't test item KS Audio Position Accuracy. Do this my driver's mistake? And What should I do to run KS Audio Position Accuracy test? Or I can't pass HCT 11.2 with USB Audio driver which base on PortCls. Thanks. BR, Tzung-Dar Tsai ________________________________________________ ****************** 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.de/