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    • 4. 发明授权
    • Direct data transfer for device drivers
    • 用于设备驱动程序的直接数据传输
    • US08719466B2
    • 2014-05-06
    • US13328739
    • 2011-12-16
    • Jeffrey David DuncanDamon Neil Clark
    • Jeffrey David DuncanDamon Neil Clark
    • G06F13/28G06F12/02G06F15/167
    • G06F13/28
    • A method for performing direct memory access includes obtaining, by a application executing on a host, a kernel address space identifier of a first driver kernel memory. The application sends the kernel address space identifier to a second device driver. The second device driver obtains, using the kernel address space identifier, a cookie structure binding the first driver kernel memory to a second device driver address space for the first driver kernel memory. The application sends a request for a direct memory access operation. The request includes a location identifier of a location storing a data object in the first driver kernel memory. Based on the cookie structure, the second device driver performs, using the location identifier, the direct memory access operation to transfer the data object from the first driver kernel memory to a second driver kernel memory.
    • 用于执行直接存储器访问的方法包括通过在主机上执行的应用来获得第一驱动器内核存储器的内核地址空间标识符。 应用程序将内核地址空间标识符发送到第二个设备驱动程序。 第二设备驱动程序使用内核地址空间标识符获得将第一驱动器内核存储器绑定到第一驱动器内核存储器的第二设备驱动器地址空间的cookie结构。 应用程序发送一个直接内存访问操作的请求。 请求包括在第一驱动器内核存储器中存储数据对象的位置的位置标识符。 基于cookie结构,第二设备驱动程序使用位置标识符执行直接存储器访问操作,以将数据对象从第一驱动器内核存储器传送到第二驱动器内核存储器。
    • 5. 发明授权
    • Protective hood
    • 防护罩
    • US08640265B2
    • 2014-02-04
    • US13527432
    • 2012-06-19
    • Paul David Duncan
    • Paul David Duncan
    • A42B1/06A42B3/28
    • A42B3/04A42B1/008A42B1/048A62B17/04A62B18/003
    • A protective hood is provided for protecting a wearer's head from environmental elements. The protective hood includes a hood body having a cap section positioned to fit over a top of the wearer's head, side sections positioned to hang adjacent sides of the wearer's head, and a back section positioned to hang adjacent a back of the wearer's head. The hood body defines an interior space for receiving the wearer's head. An outlet is provided for exhausting gas from the interior space of the hood body. The outlet includes a channel defined by first and second portions of the hood body. The channel is in fluid communication with the interior space and includes an open end portion in fluid communication with the environment for exhausting gas from the channel into the environment.
    • 提供用于保护佩戴者的头部免受环境因素的保护罩。 保护罩包括罩主体,其具有盖部,其被配置为配置在佩戴者头部的顶部上,侧部分定位成悬挂在佩戴者头部的相邻侧面;以及后部,其位于与佩戴者头部的后部相邻的位置。 罩主体限定用于接收佩戴者头部的内部空间。 设置有用于从罩主体的内部空间排出气体的出口。 出口包括由罩主体的第一和第二部分限定的通道。 通道与内部空间流体连通,并且包括与环境流体连通以将气体从通道排放到环境中的开口端部分。
    • 7. 发明申请
    • DIRECT DATA TRANSFER FOR DEVICE DRIVERS
    • 用于设备驱动程序的直接数据传输
    • US20130159564A1
    • 2013-06-20
    • US13328739
    • 2011-12-16
    • Jeffrey David DuncanDamon Neil Clark
    • Jeffrey David DuncanDamon Neil Clark
    • G06F13/28
    • G06F13/28
    • A method for performing direct memory access includes obtaining, by a application executing on a host, a kernel address space identifier of a first driver kernel memory. The application sends the kernel address space identifier to a second device driver. The second device driver obtains, using the kernel address space identifier, a cookie structure binding the first driver kernel memory to a second device driver address space for the first driver kernel memory. The application sends a request for a direct memory access operation. The request includes a location identifier of a location storing a data object in the first driver kernel memory. Based on the cookie structure, the second device driver performs, using the location identifier, the direct memory access operation to transfer the data object from the first driver kernel memory to a second driver kernel memory.
    • 用于执行直接存储器访问的方法包括通过在主机上执行的应用来获得第一驱动器内核存储器的内核地址空间标识符。 应用程序将内核地址空间标识符发送到第二个设备驱动程序。 第二设备驱动程序使用内核地址空间标识符获得将第一驱动器内核存储器绑定到第一驱动器内核存储器的第二设备驱动器地址空间的cookie结构。 应用程序发送一个直接内存访问操作的请求。 请求包括在第一驱动器内核存储器中存储数据对象的位置的位置标识符。 基于cookie结构,第二设备驱动程序使用位置标识符执行直接存储器访问操作,以将数据对象从第一驱动器内核存储器传送到第二驱动器内核存储器。