发明名称 |
EXTENSIONS FOR USB DRIVER INTERFACE FUNCTIONS |
摘要 |
In embodiments of extensions for USB driver interface functions, a set of USB driver interfaces are exposed by a USB core driver stack, and the USB driver interfaces include USB driver interface functions to interface with USB client function drivers that correspond to client USB devices. A composite device driver registers itself and requests a function handle for each function of a client USB device. The USB client function drivers are enumerated and the function handles generated for each function of the client USB device. A check first protocol is enforced that directs a USB client function driver to check for availability of a USB driver interface function before interfacing with the USB core driver stack via the USB driver interfaces. A contract version identifier is received that indicates a set of operation rules by which a USB client function driver interfaces with the USB core driver stack. |
申请公布号 |
US2012221751(A1) |
申请公布日期 |
2012.08.30 |
申请号 |
US201213464282 |
申请日期 |
2012.05.04 |
申请人 |
AULL RANDALL E.;HOLAN DORON J.;SANKARANARAYAN MUKUND;MICROSOFT CORPORATION |
发明人 |
AULL RANDALL E.;HOLAN DORON J.;SANKARANARAYAN MUKUND |
分类号 |
G06F3/00 |
主分类号 |
G06F3/00 |
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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