Tim, I'm not sure I agree with you on this one. Doesn't the answer depend on the way the vendor implemented their custom commands? For instance I have implemented a control point in USB firmware to accept custom commands and an interrupt endpoint to send back custom events and all I have to do from the Windows side is open the USB device and issue read and write commands. -Chris Perry Bose Corporation -----Original Message----- From: wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Tim Roberts Sent: Friday, June 15, 2007 1:16 PM To: wdmaudiodev@xxxxxxxxxxxxx Subject: [wdmaudiodev] Re: Sending Vendor Specific Commands to USB devices KS wrote: > > I would like to send some device specific USB vendor commands to a USB > device that is running on Microsoft USB drivers (i.e., I do not have > control over the driver) Is there any way for me to do this using a > user mode application in XP? The only way is to write a filter driver that sits between the standard driver and USBD. Such a filter has full access to the raw device. What kind of device is it? -- Tim Roberts, timr@xxxxxxxxx Providenza & Boekelheide, Inc. ****************** 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/
