After reading datasheet for four days, I finally started to write code yesterday. So far, the capacitive screens I have done include ITE, Solomon, focaltech, EETI, and cypress. To be honest, the driver for writing these things is already familiar, but today I still feel it! ATMEL's capacitive screen is the best. The interface for drivers is perfect, and even the object-oriented idea is used! The Atmel drive
Deng, it is best to support handwriting input to about 60, or at least 50. I tested it on M8, and it can reach 86/s, as shown in.
It seems that there is still a need for further optimization of the touch driver, and it is necessary to increase the handwriting sensitivity parameters.
For touch screen drivers, in
);
(3) Reconfigure the kernelRoot @ farsight:/source/kernel/linux-2.6.26.5 # Make menuconfigDevice Drivers ---> graphics support --->Logo configuration --->[*] Bootup logo [*] Standard black and white Linux logo [*] standard 16-colo rlinux logo [*] standard 224-color Linux logo(4) recompile the kernelReplaying Development BoardAt this time, there will be a cute little penguin logo. This indicates that your driver has been successfully transplanted.
Qt touch screen driverThe signal related to user input events in QT/Embedded is built on the Interface call to the underlying input device. It is generally implemented through I/O read/write to the device file. Most of these drivers have been encapsulated in the QT library to form the corresponding device driver interfaces, such as the display card driver, mouse,
again and find eventhub. CPP and inputreader. CPP has changed a lot. Looking at the software, I still felt a little flustered. Who made me do this? I quickly changed my mind into a battle.Since we have a general understanding of the above, we have taken a general view of the global, and the rest of the task is to break through each other. We can't lag behind when the CPUs are all multi-core. Let's operate on multiple threads. Read the Framework Code when you are tired of checking the kernel kno
Original: http://blog.csdn.net/gooogleman/archive/2008/11/05/3219498.aspx
Experience in modifying the display and touchp drivers under multiple LCD screens
First of all, what I do is the wince Platform Based on S3C2410.After changing the LCD, you generally need to modify the display and touchp drivers. We recommend that you extract some common macros and use them to write head files independently. In addit
to delete all the compiled target files and re-compile them. In particular, the kernel files are very interesting here ...... I may add this part in subsequent articles. Coming soon !!!!
Next let's take a look at the touch screen.
The touch screen is divided into XXX points, and XXXX are available ......
Let's give a
To port the MDD layer of the touch screen driver to the drivers folder of the BSP package, we need to figure out how to compile and generate tchmain. Lib in public"0k5/9 F: \ wince600 \ public \ common \ cesysgen \ makefile:
Figure 1
Figure 1 shows tchmdd. lib is created by tchmain. lib, tch_trns.lib, or tchbasic. lib, which is compiled and generated under the
Recently need to put a touch screen device to TV, now more common is the use of USB interface Touch box, for various platforms, here is a general record on Android kernel in the Usbtouchscreen driver.Writing is not easy, reprint need to indicate the source: http://blog.csdn.net/jscese/article/details/41827495Driver compilation:The current kernel are all self-cont
This document describes how to develop an I2C interface touch screen driver mounted on the friendly mini-2440 platform.
Kernel edition linux-2.6.32.2,The platform is a touch screen with the arm9-s3c2440 + I2C interface.
For exampleLinux I2C driver architectureDescriptionHttp://www.lupaworld.com/273398/viewspace-204
, Ev);
Addlocked (Di, curtime, Ev.flags, ..., me);
}
}
};
Input Event Distribution ThreadAn input event distribution thread was created in Frameworks/base/services/java/com/android/server/windowmanagerservice.java, which is responsible for distributing the event to the appropriate window.
Mqueue.getevent
Dispatchkey/dispatchpointer/dispatchtrackball
keypad, touch screen process An
Tags: mnt nts obj dir + = Touch cal amp 3.41. Modify the makefile under drivers/input/touchscreen/#obj-$ (config_touchscreen_s3c2410) + = s3c2410_ts.oobj-$ (config_touchscreen_s3c2410) + = S3C_TS.O2. Modify the. config, locate config_touchscreen_s3c2410, and change to is Set config_touchscreen_s3c2410=isset3. Make Uimage4. Download the new kernel, launch the Development Board, CD/MNT5. CD Ts_dir6
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