module_exit(word_count_exit); module_param(worldNum,int,0644); module_param(worldName,charp,0644); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Mstar <@>"); 先来看下效果: shell@coconut:/data/local # insmod hello_world.ko [ 122.774769] word_count_init_sucess [ 122.778314] worldNum=61 , wo...
2. module_param宏是Linux 2.6内核中新增的,该宏被定义在include/linux/moduleparam.h文件中,具体定义如下: /* Helper functions: type is byte, short, ushort, int, uint, long, ulong, charp, bool or invbool, or XXX if you define param_get_XXX, param_set_XXX and param_check_XXX. */ #def...
2. module_param宏是Linux 2.6内核中新增的,该宏被定义在include/linux/moduleparam.h文件中,具体定义如下: /* Helper functions: type is byte, short, ushort, int, uint, long, ulong, charp, bool or invbool, or XXX if you define param_get_XXX, param_set_XXX and param_check_XXX. */ #def...
在设备树中,module_param的使用方式略有不同。设备树中的参数通常以/parameters/为前缀,并且使用dtb_param()宏来定义。例如: static int my_param = 0; module_param(my_param, int, 0644); device_param(my_param, int, 0644); 复制代码 在这个例子中,my_param是一个整数类型的参数,它的默认值是0,可以...
* file name : module_param.c * author : tiger-John */ #include<linux/init.h> #include<linux/module.h> #include<linux/kernel.h> MODULE_LICENSE("GPL"); static char *who; static int times; module_param(who,charp,0644); module_param(times,int,0644); ...
module_param_string(path, fw_path_para, sizeof(fw_path_para), 0644);网上查了下,说是为可以在用户空间设置参数。特地的看了下代码实现 文件路径: include/linux/moduleparam.h #define module_param_string(name, string, len, perm) \ static const struct kparam_string __param_string_##name \ =...
1.module_param.c /* * file name : module_param.c * author : tiger-John */ #include<linux/init.h> #include<linux/module.h> #include<linux/kernel.h> MODULE_LICENSE("GPL"); static char *who; static int times; module_param(who,charp,0644); module_param(times,int,0644); static in...
module_param(target_pid, int, 0644); static void print_task_info(unsigned int pid) { struct task_struct *task; for_each_process(task) { if (task->pid == pid) { printk("Found: %s, PID: %d, TGID: %d\n", task->comm, task->pid, task->tgid); ...
module_param(size, ushort, 0644); MODULE_PARM_DESC(size, “The size in inches of the fishing pole” “connected to this computer.” ); module_param() 和module_param_array() 的作用就是让那些全局变量对insmod 可见,使模块装载时可重新赋值。
module_param(size, ushort, 0644); MODULE_PARM_DESC(size, “The size in inches of the fishing pole” “connected to this computer.” ); 2 module_param源码剖析 #define module_param(name, type, perm) \ module_param_named(name, name, type, perm) ...