class_create(THIS_MODULE, “my_device_driver”); device_create(myclass, NULL, MKDEV(major_num, minor_num), NULL, “my_device”); 这样的module被加载时,udev daemon就会自动在/dev下创建my_device设备文件。 我们在刚开始写Linux设备驱动程序的时候,很多时候都是利用mknod命令手动创建设备节点,实际上Linu...
struct class *class_create(struct module *owner, const char *name) class_create - create a struct class structure @owner: pointer to the module that is to "own" this struct class @name: pointer to a string for the name of this class. 在/sys/class/下创建类目录 class_device_create() ...
struct class *class_create(struct module *owner, const char *name) class_create - create a struct class structure @owner: pointer to the module that is to "own" this struct class @name: pointer to a string for the name of this class. 在/sys/class/下创建类目录 class_device_create() ...
structclass*cls; cls=class_create(THIS_MODULE,"sdev"); if(IS_ERR(cls)){ returnPTR_ERR(cls); } 解析: 创建设备节点使用了两个函数 class_create()和class_device_create()。在__exit()函数里,对应的使用class_destory()和class_device_destory()注销创建的设备节点。 但是在编译的时候,发现报错:impl...
owner:一个struct module结构体类型的指针,指向函数__class_create()即将创建的、“拥有”这个struct class的模块。一般赋值为THIS_MODULE,此结构体的详细定义见文件include/linux/module.h。 name:char类型的指针,代表即将创建的struct class变量的名字,用于给struct class的name字段赋值。通俗地说,就是指向struct clas...
struct class *myclass = class_create(THIS_MODULE, “my_device_driver”); class_device_create(myclass, NULL, MKDEV(major_num, 0), NULL, “my_device”); 这样的module被加载时,udev daemon就会自动在/dev下创建my_device设备文件。 class_create() ...
Thanks! This worked to fix the PTAT (Intel Thermal Analysis Tool) installing the driver in CentOS 9 (with kernel 5.14.0-457.el9.x86_64). For anyone else looking for a fix, I had to edit the file ptusys_drv.c and change following: ptusysClass = class_create(THIS_MODULE, ...
struct class *myclass = class_create(THIS_MODULE, “my_device_driver”); class_device_create(myclass, NULL, MKDEV(major_num, 0), NULL, “my_device”); 这样的module被加载时,udev daemon就会自动在/dev下创建my_device设备文件。 class_create() --- linux-2.6.22/include/linux/device.h struc...
structclass*myclass=class_create(THIS_MODULE,“my_device_driver”); class_device_create(myclass,NULL,MKDEV(major_num,0),NULL,“my_device”); 这样的module被加载时,udevdaemon就会自动在/dev下创建my_device设备文件。 class_create() --- linux-2.6.22/include/linux/device.h structclass*class_crea...
With this, it is possible to omit the transformed features in the last components of the feature vector, which typically are mainly influenced by noise, without losing a large amount of information. The parameter NumComponents can be used to determine how many of the transformed feature vector ...