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Values for VDMAD (VxD ID 0004h) service number

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Value Description

0000h

get version

0001h

virtualize channel

0002h

get region information

0003h

set region information

0004h

get virtual state

0005h

set virtual state

0006h

set physical state

0007h

mask channel

0008h

unmask channel

0009h

lock DMA region

000Ah

unlock DMA region

000Bh

scatter lock

000Ch

scatter unlock

000Dh

reserve buffer space

000Eh

request buffer

000Fh

release buffer

0010h

copy to buffer

0011h

copy from buffer

0012h

default handler

0013h

disable translation

0014h

enable translation

0015h

get EISA address mode

0016h

set EISA address mode

0017h

unlock DMA region (ND)

0018h

"VDMAD_Phys_Mask_Channel"

0019h

"VDMAD_Phys_Unmask_Channel"

001Ah

"VDMAD_Unvirtualize_Channel"

001Bh

"VDMAD_Set_IO_Address"

001Ch

"VDMAD_Get_Phys_Count"

001Dh

"VDMAD_Get_Phys_Status"

001Eh

"VDMAD_Get_Max_Phys_Page"

001Fh

"VDMAD_Set_Channel_Callbacks"

0020h

"VDMAD_Get_Virt_Count"

0021h

"VDMAD_Set_Virt_Count"

0021h

...last service for Windows95 SP1

See Also:

#01267,#02646,#02683 at INT 2F/AX=1684h/BX=0444h