## MMPM/2 Device Driver Reference

[prev][next][parent][TOC]

### DDCMDREGISTER Field - ulAddressType

ulAddressType (ULONG) Specifies VSD or PDD output (required) address pointer type to data buffer. The VSD or PDD tells the stream handler what type of address pointer it expects the data buffer to be. The stream handler then requests this address type to the SSM, so that the Sync/Stream Manager will send the correct type for each buffer request.

ADDRESS_TYPE_VIRTUAL 0
ADDRESS_TYPE_PHYSICAL 1
ADDRESS_TYPE_LINEAR 2