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ABSTRACT DEVICE DRIVER MODEL FOR THE PORTABILITY OF DEVICE DRIVERS ACROSS DIFFERENT OPERATING SYSTEM PLATFORMS
ABSTRACT DEVICE DRIVER MODEL FOR THE PORTABILITY OF DEVICE DRIVERS ACROSS DIFFERENT OPERATING SYSTEM PLATFORMS
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机译:用于跨不同操作系统平台的设备驱动程序的可移植性的抽象设备驱动程序模型
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摘要
An abstract interface model for device drivers in a set-top terminal, such as for use in a cable or satellite television subscriber network. In a layered software architecture, a device driver abstract interface model allows communication between a client (112, 212) and the device driver (154, 254) regardless of the operating system (OS) under which the device driver operates. In a first embodiment, the architecture includes a dedicated (OS-specific) device driver interface (132), and a proxy uses a first abstract interface (122) to convert interface service requests from a client (112) into OS-specific calls to the device driver (154). For a client that directly accesses a dedicated (OS-specific) device driver interface (132), a second abstract interface (152) is used to convert the interface service requests into OS-specific calls to the device driver (154). Direct access to the OS-specific device driver interface (132) is therefore maintained.
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