发明名称 |
USER MODE DEVICE DRIVER INTERFACE |
摘要 |
A user mode device driver interface (UMDDI) is disclosed. The UMDDI is preferably implemented in Windows(R) NT(R) version 5.0 and similar systems. The UMDDI allows a device driver to execute in user-mode while the graphics engine (GRE) remains in kernel-mode. The UMDDI exists as a layer between the user-mode driver and GRE; from the perspective of GRE, it encapsulates the user-mode driver and makes it appear to be a normal kernel-mode driver. The UMDDI layer handles the kernel-to-user and user-to-kernel transitions, parameter validation, and management of the kernel-mode and user-mode data and objects.
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申请公布号 |
US2002152331(A1) |
申请公布日期 |
2002.10.17 |
申请号 |
US19980211941 |
申请日期 |
1998.12.15 |
申请人 |
WONG GILMAN K.;WANG LINGYUN;LEE HOCK S.;OLYNYK KIRK O.;XU DAVID LIPING;GOOSSEN JAMES ANDREW ALAN |
发明人 |
WONG GILMAN K.;WANG LINGYUN;LEE HOCK S.;OLYNYK KIRK O.;XU DAVID LIPING;GOOSSEN JAMES ANDREW ALAN |
分类号 |
H04L29/06;H04L29/08;(IPC1-7):G06F13/10;G06F15/163;G06F9/54;G06F9/00 |
主分类号 |
H04L29/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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