ADB self-made universal driver method, exclusive secret
This article from: http://kraft.iteye.com/blog/1275276
Android often encounters a mobile phone that cannot find the ADB driver, or to adapt to multiple drivers, there is actually a very simple solution.Use the Official Google Android driver as the blueprint to add your own devices.
Prepare notepad to open ex
The audio driver is implemented in the wavedev2 mode. This is a single-layer driver mode, and all platform-related functions are implemented in hwctxt. H and hwctxt. in CPP, it also includes MIDI support, software mixer support, S/pdif interface, gain class interface, forcespeaker interface, and so on.
(1) software implementation of the audio system
Audio Device Drivers transmit audio data streams through
Wait Queue:
In Linux driver programming, waiting queues can be used to implement blocking of processes.
The wait queue can be thought of as a container for the save process, and the process is placed in a wait queue when the process is blocked;
When the process is awakened, the process is fetched from the wait queue.
waiting for the definition and initialization of the queue wait_queue_head_t Declare_wait_queue_head:
The Linux 2.6 kernel provides the
Some experiences of installing the alsa sound card driver in Linux are expected to help those who fail to install the driver-Linux general technology-Linux technology and application information. The following is a detailed description. Which of the following is my personal information? Maybe you only have one thing missing, or more, double or totally different situations, however, I still hope that the fol
A system vulnerability in a taxi in Xiamen allows you to view the driver information (Remote Control of the playing device in the car \ acquisition of Xiamen taxi driver photo ID card number, etc)
Information of 2000 out 130 drivers cracked
Http://www.xm968890.com: 8008/Multimedia Electronic Program Dispatch System for taxis in XiamenUnauthorized access
Information can be pushed to empty vehicles or heavy
Backlight Driver Design
1. Here the hardware interface uses the s3c2450 gpb1, that is, the timer 1.
The input frequency of the timer is pclk/{prescaler value + 1}/{divider value }.
First set prescaler value:
Static void bak_setprescaleandmux (DWORD v_prescale, DWORD v_mux)
Then set divider value:
Static void bak_settcntb (DWORD v_tcntb)
2. Set the PWM pulse width of the tout1 Timer:
Static void bak_settcmpb (DWORD v_tcmpb)
3. After these settings
Windows driver development and windows driver development
In the previous article "Windows driver development-4", we have completed hardware preparation. However, we do not have specific data operations, such as receiving read/write operations.
Before performing such operations in WDF, you must perform device I/O control to ensure data integrity.
We know that WDF
Linux Device Driver inquiry 1st days ---- spi Driver (1), 1st days ---- spi
This document allows reprinting. Please indicate the source:Http://blog.csdn.net/fulinus
The Linux kernel code is too big, and a small module will make you feel helpless. This afternoon, I am determined to take a good look at the spi driver.
First, analyze the spidev. c file, which define
Linux loopback NIC Driver Design, linux loopback NIC Driver
Loop NIC Driver1. The difference between a back-to-loop network card and a common network card is that it is virtual rather than a physical network card. It is equivalent to concatenating the sending end and the receiving end of the common network card.2. in the kernel source code, the loopback Nic Program (drivers/net/loopback. c) It is not provid
The cause of this error is that the computer used is 64-bit, but the MySQL 64-bit ODBC driver and the qt odbc driver do not know where it is incompatible, so the connection may fail. Reinstall MySQL's 32-bit ODBC driver for configuration, and connect again (64-bit and 32-bit drivers can work normally, this is not scientific = ).
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Another problem! When the camera application is started, it needs to write the Register through the IIC bus, and there are still a lot of them. In this process, the power management IC driver also needs to read the battery voltage, current, and charge/discharge status through the iic bus. In this way, TX time out occurs. Turning off the PMU driver to read IIC, the camera module writes register each time!
A
Download Chrome Driver First (the installation of Firefox Driver is the same as this step)Link:Http://chromedriver.storage.googleapis.com/index.htmlNext, on the console (terminal), manipulate the instructions for the red font:
Install Unzip
sudo apt-get install unzip
Assuming you ' re running a 64-bit OS, download the latest version of Chromedriver from their website
wget -N http
MongoDB samus Driver (1), mongodbsamus driver
Https://github.com/samus/mongodb-csharp
The official driver is not easy, so I used this,
1 var connectionString = new mongoonstringbuilder () 2 {3 ConnectionTimeout = TimeSpan. fromSeconds (30), 4 ConnectionLifetime = TimeSpan. fromSeconds (10), 5 MinimumPoolSize = 1, 6 MaximumPoolSize = 10, 7 Pooled = true, // use
Solve "system. Data. ODBC. odbcexception: Error [im001] [Microsoft] [ODBCDriverProgramManager]The driver does not support this function"Cowbird
Recently I met a web application that uses ODBCConnectionFoxProDatabase, the Web applications developed by the results are not available on every computer. Some computers Report"System. Data. ODBC. odbcexception: Error [im001] [Microsoft] [ODBCDriver Manager]The driver
Nand flash Driver kernel implementation analysis process:
Analysis code
Handler // drivers/mtd/nand/nand_base.c identify nand flash based on nand_chip's underlying operation function and construct mtd_info nand_scan_ident nand_set_defaults if (! Chip-> select_chip) chip-> select_chip = nand_select_chip; // The default value is not applicable if (chip-> program func = NULL) chip-> program func = nand_command; chip-> program _ctrl (mtd, command, ctrl);
Author: wogoyixikexie @ gliet
Previously, I heard from my friends about porting drivers under PB to BSP, and even the file system to BSP. -- Haha, It's very advanced. Now I will take the SD card of 2410 as an example.
Previously I did not know that the SD card driver would be in the Pb installation file. Let's take a look at the following three posts-2410 large-capacity SD card research.
Http://topic.csdn.net/u/20080911/16/111a849c-fd1f-4955-840d-6ddf
OCI: to install the Oracle client, the portability is slightly poor, and theoretically the performance is better
Thin: belongs to type4, which is implemented in pure Java and has good portability. Theoretically, the performance is slightly lower.
Recommendation: it is best to use thin driver, which is more portable and more standard, with fewer problems. As for the performance, to be honest, thin driver
Android, X Windows, QT, and many other applications support input devices, such as the keyboard, mouse, and touch screen, in Linux systems, or increasingly prefer the standard input subsystem.
Because the input subsystem has completed the character-driven file operation interface, the core task of writing the driver is to complete the interface set aside by the input system, with little workload. But if you want to apply it more flexibly, You need to
Character Device Driver:
1. Generally, we use APIs that dynamically allocate device numbers:
Int alloc_chrdev_region (dev_t * Dev, unsigned int firstminor, unsigned int count, char * Name );
Dev is a function used for output. After successful call, the first number of the allocated range will be saved.
Void unregister_chrdev_region (dev_t first, unsigned int count );
The above function allocates device numbers for
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