Developers Club geek daily blog

Modification of system call. Part 2

2 years, 10 months ago
In the previous part we have agreed before that not exported names of kernel of Linux can be used in code of own modules of kernel with the same success, as exported. One of such names in kernel is the selector table of all system calls of Linux. Actually, it is also the main interface of any annexes to services of kernel. Now we will consider as it is possible to modify the original processor of any system call, to change it, or to bring variety its execution according to own vision.

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Game on naked HTML/CSS

2 years, 10 months ago
Today it will be a question how to create game without using js and other scripts. Only HTML/CSS, only heytkor.


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We write the driver of the user environment for uinput on Raspberry Pi

2 years, 10 months ago
Фотография дисплеяFor the sake of one of the small projects on Raspberry Pi 2 I have got capacity the touch Waveshare display with the democratic price, modest permission and doubtful support. In box with the display DVD-R DL lay, and according to statements of the seller, images of systems on the basis of Raspbian lay there. I did not manage to read them, search of solutions on the Internet has prompted that the driver which lay there, was and so not the best solution (already compiled kernel without source codes).

In the course of search I have come across the project of one guy from friendly China. Thanks to it I could come to the decision.

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We make available all characters of kernel of Linux. Part 1

2 years, 10 months ago

State of affairs


This discussion belongs to Linux operating system kernel, and is of interest to developers of modules of kernel, drivers under this operating system. Other these notes are hardly of interest to all.

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Code of 15-year and newspaper of declarations

2 years, 10 months ago
Having seen the translated publication about support ancient as bones of mammoth of legacy-code, I cannot but share history from the experience, and at the same time, and to urge to write those who also as well as I faced similar tasks. And for the power offensively — why similar publications – generally translated? At us is and there were many gifted programmers modeling the with anything not the compatible software – the own DBMS, graphic interfaces, drivers for industrial equipment of own development. On work I faced creations local kulibiny much, and still I will tell about them if there is interest.

There was this history in 2001 and has begun with that in FIDO шной conferences of $CRACK$. TALKS

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The most outdated infrastructure which can only be bought for money

2 years, 10 months ago
The other day 10 years are executed since I have got the strangest job.

There was the 2005th year. My interest in development of the system of management of content on Java for the company which has recently bought our startup steadily disappeared while development of compilers and tools of language infrastructure was my real passion (generally for SBCL). Somehow time I have noticed open vacancy just in this direction that generally was rather unusual occurrence. I have quickly got through interview — so quickly that have even not asked the necessary questions and have ignored some disturbing calls.

I was expected by fascinating travel to the world of retrocomputing.

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One more way of automatic call of unit-tests in the Xi language

2 years, 11 months ago
On Habré already there are some articles how to develop modular tests in the Xi language. I am not going to criticize the described approaches, and only I will offer one more — what we use in Habré's project.

To whom it is interesting, I ask tackle! But I warn: there are a lot of footcloths from macroes and "linkersky" magic.

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Numerical types and containers C ++ from the point of view of productivity

2 years, 11 months ago
Often all of us should deal with processing of large volumes of data. This note is reasoning on what containers and numerical types (taking into account different operations) best of all cope with this task. References sometimes occur in books how by means of choice of this or that type to increase productivity, but thus specific digits are not given.

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C# — Modelling of "reasonable" life on the basis of neural networks

2 years, 11 months ago
This article is devoted to research of opportunities of neural networks at their use as basis for individual reason of modeled object.

Purpose: to show, whether the neural network is capable (or its this implementation) to perceive the "surrounding" world, independently to be trained and on the basis of own experience to make decisions which can be considered rather reasonable.

image

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Stabilization of taymlaps-video on the calculator (IPython+OpenCV)

2 years, 11 months ago
Like many spontaneous and seasonal fans of astrophotography, this August I caught at the night of Perseida. The catch small is, but now not about it, and that series of photos which arose upon making of them taymlaps became by-product of such fishing. But here ill luck: installation of the camera was not so rigid as it would be desirable, and between personnel there was small shift. Has tried to correct it desheyking plug-in in VirtualDub, but results have not pleased. Then it has been decided to make the bicycle: in more detail about results and volume as they are received — under cat.

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