trusted platform module 1 2 driver

Platform device registration analysis:/* for the following resources, read the chip manual and view the schematic diagram */---------------------------------------------------------ARCH/ARM/plat-s3c24xx/Devs. c/* Most device controller resources are defined here *//* LCD controller */Static struct resource maid [] = {[0] = {. Start = s3c24xx_pa_ LCD,. End = s3c24xx_pa_ LCD + s3c24xx_sz_ LCD-1,. Flags = iore

This digest is "Developing and debugging Skills" in the book "Embedded Linux driver template explaining and project practice".The power of Linux is that there are many open source projects that can be used, and often many requirements can be quickly solved by looking for relevant open source modules. One of the key points to apply these open source modules to embedded is to cross-compile the open source project using the cross-compilation tool.Dependi

Set the test system development environment and hello World entry module as described in the previous blog, please refer to the http://blog.csdn.net/tianshuai11/article/details/7442168 1. Comparison between core modules and Applications Applications: small-and medium-scale programs that run a single task from start to end. Core Module: Register yourself in advanc

In the Xilinx ZYNQ 7000 platform, using UDP to send 1 bytes or 2 bytes of data, checksum is the error value of 0xFFFF, the receiver can not normally receive the data sent by the ZYNQ7000 platform, I have found the solution to the problem, have the problem of friends can through the mailbox [ Email protected] Contact me

oData = D1; 83. assign oTag = isTag; 84. 85. endmodule 81st ~ Line 83 is the output driver declaration.Ps2_demo.v I will not re-paste the modeling diagram here. Please review figure 8.10 on your own. 1. module ps2_demo 2. ( 3. input CLOCK, RESET, 4. input PS2_CLK, PS2_DAT, 5.

our probe. The probe function calls register_framebuffer to register an fb_info struct with the kernel. The fb_info structure is the core of the LCD driver. It is the fb_info struct that the application calls open. Below we can summarize the core work of the probe function, which is also the core work of writing the entire driver: 1. Allocate the fb_info struct;

Experiment 1: Flow lamp Module For developers, the earth-moving ceremony is undoubtedly the most important task. For this reason, the water lamp experiment is no longer suitable for the low-level modeling II. Let's start the experiment. Figure 1.1 create a model for an experiment. As shown in 1.1, the experiment named "led_funcmod" function module. If you ign

, Exact_match, Exact_lock, p), if (error) return Error;kobject_get (p->kobj.parent); return 0;} The parameter p is the struct Cdev pointer of the device, Dev is the first device number, and count is the number of successive secondary device numbers. The function describes the addition of the device by adding the pointer p to the system to make the device effective immediately. If the add fails, the error code for the negative number is returned.The last function is Cdev_del, and its function is

Detailed analysis of the android GSM Driver Module (rild) (2) request process Please note that pandatv posted on it168 and opendroid 1. Operation of multiplexing I/O MechanismAs mentioned above, requests are received through multiplexing I/O in ril_event_loop, and Initialization is also analyzed. Now let's take a clo

Write the makefile file directly (assuming the file to be compiled is HELLO.C)1 Ifneq ($ (kernelrelease),)2 Obj-m: = hello.o3 Else4 Obj-m: = hello.o5 Kerneldir =/lib/modules/$ (Shell uname-r)/build6 pwd: = $ (Shell PWD)78 Default:9 $ (make)-C $ (Kerneldir) m=$ (PWD) modulesTen endifThe first ifeq ($ (kernelrelease),) is currently useless, and its origin is that the Kernelrelease macros are defined when the

, JAVA supports the object-oriented concept well and has a complete functional library for calling. This script engine is transplanted to all platforms, this script will naturally implement the so-called "cross-platform ). The vast majority of script engines support a significant feature, that is, they can use C/C ++ to write modules and call these modules in the script to compare them with Java, java must provide a mechanism to call modules written i

short, although Google provides ndk to easily build the JNI module of the Android platform, it is no difference to know that running several scripts is similar to not understanding it, I hope to understand the JNI technology of Android in principle. So we started the JNI construction process of the "Tufa:(1) Preparations for the tool chainThe first step, of cour

1. Operation of multiplexing I/O MechanismAs mentioned above, requests are received through multiplexing I/O in ril_event_loop, and Initialization is also analyzed. Now let's take a closer look at how this mechanism works.Ril_event_set is responsible for configuring an event. There are two main types of events:Ril_event_add adds an event that uses multi-path I/O. It is responsible for attaching the event to the queue, adding the event channel handle f

Followed by the previous article:Mms module ConversationList Process Analysis (1) Query of three contact data The previously obtained cursor obtained using AsyncQueryHandler only queries all the conversation information data. However, the contact only saves its ID: recipientIds; You also need to obtain the contact information based on this recipientIds; this is obtained when packaging information data for