I gathered some further info regarding this issue; our device is enumerating to use Re-trigger Control (RTC), but looking at the USB trace logs it seems that the system is sending Linear Control (LC) data instead. Pardon my frankness, but does Vista fully support HID Usage Tables 1.12 Bass & Treble in RTC so that a HID device may control these enhanced audio features? If this is fully supported, may I please have a pointer to the specification and any relevant examples? I have been searching for these items, but have not found them... Thanks, Ernest L. Burghardt Software Engineer Logitech 360-256-3239 (office) DJ Sisolak To <dsisolak@exchang "wdmaudiodev@xxxxxxxxxxxxx" e.microsoft.com> <wdmaudiodev@xxxxxxxxxxxxx> cc Sent by: wdmaudiodev-bounc Subject e@xxxxxxxxxxxxx [wdmaudiodev] Re: Touble with Vista Treble & Bass control 07/17/2007 10:19 AM Please respond to wdmaudiodev@freel ists.org Hi Ernest, If you can adjust the controls from the control panel then the device's audio interfaces have enumerated correctly. To get the Treble and Bass controls sent from the device you need to implement the associated HID controls. Also, for HID controls to work, the device must be selected as the preferred audio device in the system. Do you have a HID interface implemented? Is your device the preferred device? Cheers, DJ Sisolak Microsoft Corp. -----Original Message----- From: wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Ernest_Burghardt@xxxxxxxxxxxx Sent: Tuesday, July 17, 2007 9:22 AM To: wdmaudiodev@xxxxxxxxxxxxx Subject: [wdmaudiodev] Touble with Vista Treble & Bass control We have a speaker system that is using the in-box usbaudio driver where the satelites have Treble & Bass controls. The satelite responds correctly if the tone is changed from the Vista control panel, but not from the satelite. The thought is that our FW is not enumerating the device correctly to Vista; does that seem reasonable or is there some other possibility? Also, does anyone know if there is a specific portion of the enumeration that lets Vista know a device wishes to control Treble & Bass? Thanks in advance, Ernie Ernest L. Burghardt Software Engineer Logitech ****************** 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/ ****************** 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/ ****************** 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/