| 标题 | 阅读 | 评论 | 转发 | 发布日期 | |
|---|---|---|---|---|---|
| linux HZ Tick Jiffies | 859 | 0 | 0 | 2010-03-30 | |
| 2410 PWM Timer | 1117 | 0 | 0 | 2010-03-30 | |
| s3c2410 NandFlash K9F1208U0A/K9F1208U0B的读取操作 | 891 | 0 | 0 | 2010-03-30 | |
| 【NandFlash系列】之二：S3C2410读写Nand Flash分析 | 1304 | 0 | 1 | 2010-03-30 | |
| Why we have to wait for Android on the Neo 1973 | 1109 | 0 | 0 | 2010-03-29 | |
| Linux下patch的制作和应用 | 916 | 0 | 0 | 2010-03-29 | |
| android下载编译以及文件系统提取总结 | 1748 | 0 | 0 | 2010-03-29 | |
| Android对Kernel的改动汇总 | 2336 | 0 | 1 | 2010-03-29 | |
| Android内核的简单分析 | 1174 | 0 | 1 | 2010-03-29 | |
| 活灵活现用Git-技巧篇 | 1392 | 0 | 0 | 2010-03-29 | |
| 活灵活现用Git-基础篇 | 1983 | 0 | 0 | 2010-03-29 | |
| android 资源列表－史上最有价值的android资源链接 | 1598 | 0 | 1 | 2010-03-24 | |
| Unbuntu9.10 CVS服务配置指南 | 1382 | 0 | 0 | 2010-03-18 |
chen_chuang2012-10-11 16:33
高手，有本书上写cdev初始化和注册是这样写的
static void VirtualDisk_setup_cdev(struct VirtualDisk *dev, int minor)
{
int err;
devno = MDDEV(VirtualDisk_major, minor);
cdev_init(&dev->cdev, &VirtualDisk_fops);
dev->cdev.owner = THIS_MOUDULE;
dev->cdev.ops = &VirtualDisk_fops;
err = cdev_add(&dev->cdev, debno, 1);
if (err)
printk(KERN_NOTICE "Error in cdev_add()\n");
}
而cdev_init里
void cdev_init(struct cdev *cdev, const struct file_operations *fops)
{
memset(cdev, 0, sizeof *cdev);
INIT_LIST_HEAD(&cdev->list);
kobject_init(&cdev->kobj, &ktype_cdev_default);
cdev->ops = fops;
}
已经有cdev->ops = fops了
那上面的代码cdev_init之后又有dev->cdev.ops ，这两个函数不一样吗，自我感觉有点多次一举，，，不太明白
