[wdmaudiodev] Re: Anybody got any information about the IRPs in an upper filter?

  • From: "Jeff Pages" <barefeet@xxxxxxxxxxxxxx>
  • To: <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Sat, 17 Oct 2009 07:55:03 +1100

Tim wrote:

data is transfered using the ioctls IOCTL_KS_READ_STREAM
and IOCTL_KS_WRITE_STREAM.

Unless it's a WAVERT driver, in which case the audio data is DMA'd directly into a user mode buffer and no filter driver will ever see it.

Jeff
******************

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/

Other related posts: