【Tiny6410 And Linux】—（1.1）—kobject——代码

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总该有个先后，原理在上一篇文章也有介绍，所以这篇文章就是代码喽~~

还是先是程序，然后是图！

1、驱动程序

①、kobject.c

#include <linux/device.h>#include <linux/module.h>#include <linux/kernel.h>#include <linux/init.h>#include <linux/string.h>#include <linux/sysfs.h>#include <linux/stat.h>MODULE_AUTHOR("_Justin");MODULE_LICENSE("GPL");/* 函数声明 */void obj_test_release(struct kobject *);ssize_t kobj_test_show(struct kobject *,struct attribute *,char *);ssize_t kobj_test_store(struct kobject *,struct attribute *,const char *,size_t);static struct kobject kobj;static struct attribute test_attr = {.name = "Kobj_config",.mode = S_IRWXUGO,};static struct attribute *def_attrs[] = {&test_attr,NULL,};static struct sysfs_ops obj_test_sysops ={.show = kobj_test_show,.store = kobj_test_store,};static struct kobj_type ktype ={.release = obj_test_release,.sysfs_ops = &obj_test_sysops,.default_attrs = def_attrs,};void obj_test_release(struct kobject *kobject){printk("eric_test: release!\n");}ssize_t kobj_test_show(struct kobject *kobject,struct attribute *attr,char *buf){printk("Have show -->\n");printk("attrname: %s.\n",attr->name);sprintf("buf,%s\n",attr->name);return strlen(attr->name) + 2;}ssize_t kobj_test_store(struct kobject *kobject,struct attribute *attr,const char *buf,size_t size){printk("Have store -->\n");printk("write: %s.\n",buf);return size;}static int __init kobj_test_init(){printk("Kobject test init.\n");kobject_init_and_add(&kobj,&ktype,NULL,"kobject_test");return 0;}static void __exit kobj_test_exit(){printk("Kobject test exit.\n");kobject_del(&kobj);}module_init(kobj_test_init);module_exit(kobj_test_exit);

②、Makefile

ifneq ($(KERNELRELEASE),)obj-m := kobject.oelseKDIR := /home/_Jana/linux-2.6.38all:make -C $(KDIR) M=$(PWD) modules ARCH=arm CROSS_COMPILE=arm-linux-clean:rm -f *.ko *.o *.mod.o *.mod.c *.symvers *.orderendif

2、测试结果