kernel-module

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Can I add a systemcall from a module?

Can I add a 开发者_如何学Csystemcall from a module?In some kernel versions it is possible to add or modify a systemcall by changing the sys_call_table. But because this table is not intended to be cha[详细]

2023-01-09 11:10 分类：问答
How to use find_module?

How to use linux kernel\'s find_module() function? The documenta开发者_如何学运维tion says \"must hold module_mutex\".[详细]

2023-01-08 05:51 分类：问答
What options do we have for communication between a user program and a Linux Kernel Module?

I am a new comer开发者_运维知识库 to Linux Kernel Module programming. From the material that I have read so far, I have found that there are 3 ways for a user program to request services or to communi[详细]

2023-01-07 21:21 分类：问答
kernel get stack when signalled

i write readers and writers where the kernel have to syncronize between them and block writer who already read a massage[详细]

2023-01-03 09:54 分类：问答
Linux Real Mode Interface in a linux kernel module

I have a BIOS function I need to call from time to time on an embedded system, and using LRMI I was able to call it successfully from a user space program. Now I want to do the same from a loadable ke[详细]

2023-01-02 20:16 分类：问答
Saving information in the IO System

I need to write a kernel module that simulate a \"multicaster\" Using the /proc file system. Basically it need to support the following scenarios:[详细]

2022-12-31 18:31 分类：问答
How can I uniquely identify users trying to open() a kernel module?

I\'m working on a kernel module and I\'m trying to uniquely identify each one of the users trying to open() the module (can be either processes or threads).[详细]

2022-12-31 05:24 分类：问答
inode_operations , warning: initialization from incompatible pointer type

I\'m trying to compile a simple Kernel program that read and write from a proc file. I\'m trying to set permission to that file by overriding the permission fp in inode_operations struct (.permission[详细]

2022-12-30 03:00 分类：问答
Android and Kernel-Modules

So - Android is build on top of a stripped down linux system. Most of the convenient utilities are missing but all the basics are there.[详细]

2022-12-26 19:32 分类：问答
How to debug problems in Linux kernel module `init()`?

I am using remote (k)gdb to debug a problem in a module that causes a panic when loaded e.g. when init() is called.[详细]

2022-12-26 10:54 分类：问答