Linux-powered hybrid devices (Misc)

Source: Internet
Author: User

Hybrid devices for the character device:

To define a hybrid device:

struct misdevice{

int minor;  Why is there only a secondary device number because the hybrid device is a /////////////////////////linux system with the default main device number of 10 special character device.

const char *name;

const struct File_operation *fops;

struct List_head list;

struct device *parent;

struct device *this _device;

}

to Linux System Registration Hybrid device driver:
int Misc_register (struct misdevice *misc)// and functions: int cdev_add (struct Cdev///////////////////////////////////  *,dev_t,unsigned); same.

To uninstall a hybrid device:

int Misc_deregister (struct misdevice *misc)

Note: The initialization of a hybrid device does not use the function cdev_init (stuct cdev *,const struct file_operation *) to associate the device description structure with the set of device operation functions.

Linux-powered hybrid devices (Misc)

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.