logitech logi

* return: none *************************************** **************************************** /void java_com_fontlose_readassets_readfromassets (jnienv * ENV, jclass tis, jobject assetmanager, jstring filename) {Logi ("readassets"); aassetmanager * Mgr = aassetmanager_fromjava (ENV, assetmanager); If (MGR = NULL) {Logi ("% s", "aassetmanager = NULL"); return;}/* get the file name and open */jboolean isco

interfaces.. First, it contains the corresponding header file: # Define LOG_TAG "HelloService" // # include "jni. h" // some function definition declarations used by the jni layer # include "JNIHelp. h "//?? The role of each header file. Please advise ???????????? Thank you.# Include "android_runtime/AndroidRuntime. h "//? # Include #include Then we define three JNI Methods: hello_init, hello_getVal, and hello_setVal: Namespace android {/* hardware access struct defined in the hardware abstr

generate a dynamic library (you can also generate a dynamic library using run in Eclipse)(6) Java code "load" Dynamic library, invoke dynamic library1. Java calls CJava calls native method (Class param)The number of parameters in the method that will be called in C (Jnienv*,jobject,jint ... ）2. C calls JavaCall C with Java first. C then callback jniexport void Jnicall java_com_ndk2_test_providebean_callhi (jnienv *env,jobject obj) { Char*classname = "Com/ndk2/test/providebean"; Jclass Clazz;c

interfaces.. First, it contains the corresponding header file: # Define LOG_TAG "HelloService" // # include "jni. h" // some function definition declarations used by the jni layer # include "JNIHelp. h "//?? The role of each header file. Please advise ???????????? Thank you.# Include "android_runtime/AndroidRuntime. h "//? # Include #include Then we define three JNI Methods: hello_init, hello_getVal, and hello_setVal: Namespace android {/* hardware access struct defined in the hardware abstr

: assetmanager object filename resource name * output: none * return: none *************************************** **************************************** /void java_com_fontlose_readassets_readfromassets (jnienv * ENV, jclass tis, jobject assetmanager, jstring filename) {Logi ("readassets"); aassetmanager * Mgr = aassetmanager_fromjava (ENV, assetmanager); If (MGR = NULL) {Logi ("% s", "aassetmanager = NU

deviceUsing the above tools to determine which files and registry keys are needed is only part of the puzzle. After the Windows XP embedded image has been generated, the application will also need to be tested to ensure that it can work as expected-the application may dynamically load the DLL or create an instance of the COM object, however, you cannot use dumpbin or depends to capture the information. Therefore, some debugging tools are required on the target device. The following is a list of

tablestatic const Jninativemethod method_table[] = {{"Init_native", "() Z", (void*) Hello_init},{"Setval_native", "(I) V", (void*) Hello_setval},{"Getval_native", "() I", (void*) Hello_getval},};4) Implementation code for each interface in the method tablestatic void Hello_setval (jnienv* env, Jobject clazz, Jint value) {val = value;Logi ("Hello jni:set value%d to device.", Val);}Static Jint Hello_getval (jnienv* env, Jobject clazz) {

1 Source Files LedHalService.cpp#include #include #include #include #include #include struct led_control_device_t *led_hal_device = NULL;Static Jboolean Led_seton (jnienv* env, Jobject Thiz, Jint LED){Logi ("Led HAL Jni:led_seton () is invoked.");if (Led_hal_device = = NULL){Logi ("Led HAL Jni:led_hal_device is not fetched correctly.");return-1;}Else{Return led_hal_device->set_on (Led_hal_device, LED);}}Sta

movement. Refresh rate performance indicators are often ignored by consumers, because the refresh rate is also known as the sampling frequency, many friends will be the sampling frequency and defined as the sampling rate of the DPI value of the muddy Xiao. Refresh rate in the application also occupies a very important position, for example, the mouse quickly move a distance, if the mouse's refresh rate is less than the moving distance within the image data, the mouse scan of the image data will

the mouse movement. Refresh rate performance indicators are often ignored by consumers, because the refresh rate is also known as the sampling frequency, many friends will be the sampling frequency and defined as the sampling rate of the DPI value of the muddy Xiao. Refresh rate in the application also occupies a very important position, for example, the mouse quickly move a distance, if the mouse's refresh rate is less than the moving distance within the image data, the mouse scan of the image

1. Queries with restricted conditionsThe most common is to use the WHERE clause to specify the query criteria to filter the dataChestnut 1: Check the dir_id=4 of all goodsSELECT *From productWHERE dir_id=4;Chestnut 2: Enquiry for all goods with a retail price of 119Chestnut 3: find information about all products in the Logitech G9x product nameNote: strings and dates are enclosed in single quotation marks.Chestnut 4: Check the product name is not for

file will have this aspect of processing. For this elf file, if you want to implement the hook function, you must be based on the execution view (execution view) for symbolic resolution; Get readyBefore reading down, make sure you have a general understanding of the Elf file format and arm assembly, and refer to the guide: ELF file format analysis; ARM documentation; Preparation tools: Readelf (NDK included) Objdump (NDK included) IDA Pro 6.4 or above

method table static const Jninativemethod method_table[] = {{"init_native", " () Z ", (void*) Hello_init}, {" Setval_native "," (I) V ", (void*) Hello_setval}, {" Getval_native "," () I ", (void*) Hello_getval}, }; NBSP;4) Implementation code for each interface in the method table static void Hello_setval (jnienv* env, Jobject clazz, Jint value) { Nbsp;val = value; logi ("Hello jni:set value%d to device.", Val); } static jint Hello_getval (jnienv* en

#define Log_ndebug 0#define log_nddebug 0#define log_nidebug 0#define log_nvdebug 0#define log_nwdebug 0#define You can open logv,logi,logd at once, or you can open them individually:#undef Ndebug // open logv/logi/logd#define log_ndebug 0 // open LOGV #define Log_nidebug 0 // open logi#define// open LogdExampleFor example, if you want to see And

1, add in the Android.mk fileLocal_ldlibs: =-l$ (sysroot)/usr/lib-llogLocal_path: = $ (call My-dir)Include $ (clear_vars)Local_module: =ndkdemoLocal_src_files: =COM_APP_TEST_NATIVEMETHOD.CLocal_ldlibs: =-l$ (sysroot)/usr/lib-llogInclude $ (build_shared_library)2, introduce the header file in the. c file to be implemented#include #include #include #include 3, where the debug information needs to be output__android_log_write (Android_log_debug, "tt", "Come in jin!!");Note that the front is two und

android_server_systemserver_init1 (jnienv * ENV, jobject clazz) 27 { 28 system_init (); 29} 30 31 /* 32 * JNI registration. 33 */ 34 static jninativemethod gmethods [] = { 35/* name, signature, funcptr */ 36 {"init1", "([ljava/lang/string;) V", (void *) android_server_systemserver_init1 }, 37 }; 38 39 int register_android_server_systemserver (jnienv * env) 40 { 41 return jniregisternativemethods (ENV, "com/Android/Server/systemserver ", 42 gmethods, nelem (gmethods )); 43} The name of the func

1, first you need to view the touchpad:Command: XInput listResults:? Virtual core pointer id=2 [master pointer (3)]? ? Virtual core XTEST pointer id=4 [slave pointer (2)]? ? Macintosh mouse button emulation id=14 [slave pointer (2)]? ? USB OPTICAL MOUSE id=15 [slave pointer (2)]? ? IMPS/2 Logitech Wheel Mouse id=13 [slave pointer (2)]? Virtual core keyboard id=3 [Master keyboard (2)]? Virtual Core XTEST keyboard id=5 [slave keyboard (3)]? At translate

way, the offset of glue can be obtained directly in the Assembly. The third is. Map ESRAM space. And the process only performs copy once. The implementation is as follows: 87 If (FD = 0)88 {89 volatile unsigned int * fptr, * fptrtmp, * fptr_check;90 FD = open ("/dev/mem", o_rdwr );91 If (FD =-1)92 {93 Logi ("Open/dev/MEM error ");94}95 fptr = (volatile unsigned int *) MMAP (10000x32000000, prot_read | prot_write | prot_exec, map_shared, FD, 0 X );969

(jnienv * ENV, jobject clazz, jint value) {int val = value; logi ("Hello JNI: Set Value % d to device. ", Val); If (! Hello_device) {Logi ("Hello JNI: device is not open."); return;} hello_device-> set_val (hello_device, Val );} The implementation code of hello_init in the method list shows how to call the interface provided by the lower-level Hal. Remember the previous chapter:In Android, how does Hal pro

1. Package Log.h#ifndef __multi_trace_h__#define __multi_trace_h__#ifdef Android_ndk_build#define LOG_TAG "NATIVE NDK INFO"#include #define LOGE (...) (void) __android_log_print (Android_log_error, Log_tag, __va_args__))#define LOGD (...) (void) __android_log_print (Android_log_debug, Log_tag, __va_args__))#define Logi (...) (void) __android_log_print (Android_log_info, Log_tag, __va_args__))#define LOGW (...) (void) __android_log_print (Android_log_w