Hello Doc, If the device follows the USB Audio MIDI specification the usbaudio.sys = driver should enumerate and run your device. There are certain parts of = the MIDI spec which are not covered by this driver (ie MIDI Elements) = but I am working on filling these in. Have you tried running your device with the inbox driver? Did it not = work? If not please let me know what problems you have encountered. Thanks, DJ Sisolak -----Original Message----- From: Doktor Schnipp [mailto:docschnipp@xxxxxxxx]=20 Sent: Monday, October 14, 2002 5:05 AM To: wdmaudiodev@xxxxxxxxxxxxx Subject: [wdmaudiodev] Find lower device object in driver stack hi, I try to write a midi usb driver. Since the Port/Miniport concept does not support USB, I would be thankfull for anyone who could provide some help especially how to connect audio concepts with usb (how to find lower device object to send URBs to USB etc.) thanks doc schnipp __________________________________________________________________ Gesendet von Yahoo! Mail - http://mail.yahoo.de M=F6chten Sie mit einem Gru=DF antworten? http://grusskarten.yahoo.de ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: = mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=3Dsubscribe Unsubscribe: = mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=3Dunsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.de/ ****************** 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/