FW: KSPIN_FLAG_GENERATE_MAPPINGS in AVStream

NTDEV
1

Should KSPIN_FLAG_GENERATE_MAPPINGS be set in KSPIN_DESCRIPTOR_EX.Flags
for usb minidriver that uses AVStream?

My assumption is that usb controller handles all the DMA mappings. Is it
correct?

Thank you.

2

On Wed, Mar 26, 2008 at 02:54:06PM -0400, Petriaev, Yuri wrote:

Should KSPIN_FLAG_GENERATE_MAPPINGS be set in KSPIN_DESCRIPTOR_EX.Flags
for usb minidriver that uses AVStream?

My assumption is that usb controller handles all the DMA mappings. Is it
correct?

Honestly, you should be able to figure this out for yourself. Will
your driver be doing any DMA? If not, then why would you ever been
DMA mappings?

Tim Roberts, xxxxx@probo.com
Providenza & Boeklheide, Inc.