公开(公告)号：US11086800B2

公开(公告)日：2021-08-10

申请号：US16882087

申请日：2020-05-22

Applicant: Apple Inc.

Inventor： Jeremy C. Andrus ,  Joseph R. Auricchio ,  Russell A. Blaine ,  Daniel A. Chimene ,  Simon M. Douglas ,  Landon J. Fuller ,  Yevgen Goryachok ,  John K. Kim-Biggs ,  Arnold S. Liu ,  James M. Magee ,  Daniel A. Steffen ,  Roberto G. Yepez

IPC: G06F12/14 ,  G06F13/10 ,  G06F13/40 ,  G06F9/54 ,  G06F9/445 ,  G06F13/16

Abstract: Embodiments described herein provide techniques to manage drivers in a user space in a data processing system. One embodiment provides a data processing system configured perform operations, comprising discovering a hardware device communicatively coupled to the communication bus, launching a user space driver daemon, establishing an inter-process communication (IPC) link between a first proxy interface for the user space driver daemon and a second proxy interface for a server process in a kernel space, receiving, at the first proxy interface, an access right to enable access to a memory buffer in the kernel space, and relaying an access request for the memory buffer from the user space driver daemon via a third-party proxy interface to enable the user space driver daemon to access the memory buffer, the access request based on the access right.

公开(公告)号：US11860796B2

公开(公告)日：2024-01-02

申请号：US17397966

申请日：2021-08-09

Applicant: Apple Inc.

Inventor： Jeremy C. Andrus ,  Joseph R. Auricchio ,  Russell A. Blaine ,  Daniel A. Chimene ,  Simon M. Douglas ,  Landon J. Fuller ,  Yevgen Goryachok ,  John K. Kim-Biggs ,  Arnold S. Liu ,  James M. Magee ,  Daniel A. Steffen ,  Roberto G. Yepez

IPC: G06F9/54 ,  G06F21/57 ,  G06F13/10 ,  G06F13/40 ,  G06F9/445 ,  G06F13/16

CPC classification number: G06F13/102 ,  G06F9/44505 ,  G06F9/545 ,  G06F9/546 ,  G06F13/1673 ,  G06F13/4072

Abstract: Embodiments described herein provide techniques to manage drivers in a user space in a data processing system. One embodiment provides a data processing system configured perform operations, comprising discovering a hardware device communicatively coupled to the communication bus, launching a user space driver daemon, establishing an inter-process communication (IPC) link between a first proxy interface for the user space driver daemon and a second proxy interface for a server process in a kernel space, receiving, at the first proxy interface, an access right to enable access to a memory buffer in the kernel space, and relaying an access request for the memory buffer from the user space driver daemon via a third-party proxy interface to enable the user space driver daemon to access the memory buffer, the access request based on the access right.

公开(公告)号：US20200379925A1

公开(公告)日：2020-12-03

申请号：US16882087

申请日：2020-05-22

Applicant: Apple Inc.

Inventor： Jeremy C. Andrus ,  Joseph R. Auricchio ,  Russell A. Blaine ,  Daniel A. Chimene ,  Simon M. Douglas ,  Landon J. Fuller ,  Yevgen Goryachok ,  John K. Kim-Biggs ,  Arnold S. Liu ,  James M. Magee ,  Daniel A. Steffen ,  Roberto G. Yepez

IPC: G06F13/10 ,  G06F13/40 ,  G06F9/54 ,  G06F9/445 ,  G06F13/16

Abstract: Embodiments described herein provide techniques to manage drivers in a user space in a data processing system. One embodiment provides a data processing system configured perform operations, comprising discovering a hardware device communicatively coupled to the communication bus, launching a user space driver daemon, establishing an inter-process communication (IPC) link between a first proxy interface for the user space driver daemon and a second proxy interface for a server process in a kernel space, receiving, at the first proxy interface, an access right to enable access to a memory buffer in the kernel space, and relaying an access request for the memory buffer from the user space driver daemon via a third-party proxy interface to enable the user space driver daemon to access the memory buffer, the access request based on the access right.