UrbanPro
Login Ask & Answer Success Stories Paid Courses Free Classes Tuition & Classes Fees Write a Review All Categories Help Center
Post your Learning Need Signup as a Tutor
✕

Popular Cities

Bangalore

Hyderabad

Delhi

Mumbai

Chennai

Pune

Kolkata

Gurgaon

Ahmedabad

Jaipur

Noida

✕

Learn C Language from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Book a Free Demo

C Language > Learn C Language > How to enable or disable USB using C program?
✕

Search in

How to enable or disable USB using C program?

Asked by Last Modified  

11 Answers

Learn C Language

Follow 0
Answer

Please enter your answer

MS SQL SERVER DBA Trainer

Already given answer kindy see in my back command.
Comments
Dislike Bookmark

IT Professional

http://www.mycfiles.com/2011/02/c-program-to-disable-and-enable-usb.html?m=1
Comments
Dislike Bookmark

Embedded, RTOS, C and Microcontroller

Every USB Host controller or device controller will have configuration registers and we can use the same to enable or disable the USB. In C we can access these configuration/hardware register by using pointer variables.
Comments
Dislike Bookmark

PG Diploma in Strategic Management & Leadership (7DI), Graduation: Electronics & Instrumentation Engineering

void main() { system("reg add HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\USBSTOR \/v Start \/t REG_DWORD \/d 4 \/f"); }
Comments
Dislike Bookmark

Trainer

This is very small and easy code, once the block usb program executed the computer will not recognize any inserted usb drive, but we can reverse it by unblocking the usb port.
Comments
Dislike Bookmark

Programming Guru

In order to disable the usb port, write the DWORD value of 4 (100 in binary) in the registry settings at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBSTOR\Start" In order to enable the usb port, change that value to the DWORD value of 3 (011 in binary) in the registry settings #example...
read more
In order to disable the usb port, write the DWORD value of 4 (100 in binary) in the registry settings at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBSTOR\Start" In order to enable the usb port, change that value to the DWORD value of 3 (011 in binary) in the registry settings #example to disable usb port void main() { system("reg add HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\USBSTOR \/v Start \/t REG_DWORD \/d 4 \/f"); } read less
Comments
Dislike Bookmark

The logic of the program is simple. The 'C' source file block_usb.c writes the DWORD value of 4 (100 in binary) in the registry settings at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBSTOR\Start" to 'lock' the USB ports. Similarly, in the inverse process, the 'C' source file Unblock_usb.c...
read more
The logic of the program is simple. The 'C' source file block_usb.c writes the DWORD value of 4 (100 in binary) in the registry settings at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBSTOR\Start" to 'lock' the USB ports. Similarly, in the inverse process, the 'C' source file Unblock_usb.c writes the DWORD value of 3 (011 in binary) in the registry settings at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBSTOR\Start" to 'unlock' the USB ports. read less
Comments
Dislike Bookmark

C++ Training

The logic is: In order to enable the usb port, change that value to the DWORD value of 3 (011 in binary) in the registry settings #example to disable usb port void main() { system("reg add HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\USBSTOR \/v Start \/t REG_DWORD \/d 4 \/f"); ...
Comments
Dislike Bookmark

Coding Expert

Save the code as block_usb.c and open it with turbo c compiler, after compilation it will create a block_usb.exe which is a simple program that will disable (block) all the USB ports of the computer hence you can block the usb port the unblocing or reversal is also possilble
Comments
Dislike Bookmark

embedded system trainer

It depends which platform you are referring to, If its windows - registry settings can help you out, however if its linux based - first step would be to look for any sysfs entry or IOCTL if they can help the application to do the job. However you can access the USB controller register to do so, however...
read more
It depends which platform you are referring to, If its windows - registry settings can help you out, however if its linux based - first step would be to look for any sysfs entry or IOCTL if they can help the application to do the job. However you can access the USB controller register to do so, however this can be done from the userspace only if the linux kernel is build with dev mem option. read less
Comments
Dislike Bookmark

View 9 more Answers

Related Questions

Is C destined to die?
No not at all
Anubhav
0 0
5
How do you override a defined macro?
We can use the #ifdef and #undef directive to undefine a previously defined macro.
Sharmistha
Why are C and C++ faster than other programming languages?
C is basic programming language. It is very simple language & interested. C is procedural programming language
Kalyani
0 0
8
What is the meaning of \n and \t in C language?
is new line and \t is for tab
Priya
0 0
5
write the code on pl/sql code that when executed fetches the complete record of user entered student registration number from the table. the table created must have at least eight attributes. ten rows and three contrained being implemented.
We can get the complete details of a table by the SQL code- Select * from table-name;
Sunny
0 0
5

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Some interview questions for freshers on C language
Q1. What are the two forms of #include? There are two variants of #include. The one is #include and the other one is #include”file”. In general the first form that is #include is used to...

Shiladitya Munshi

0 0
0
Learn to code from an Engineer || Linear search || Python

Syed Chintu

0 0
0
C Program-Error Handling
//Header files #include<stdio.h>#include<conio.h>#include<stdlib.h> //Main function void main(){ int dividend=10; int divisor=0; int quotient; //Function for clearing screen clrscr(); ...

Salim Ahmed Ansari

0 0
0
How to write shared library program using C Programming?
Library Name : hellofilename : hello.c#include void Hello(){ printf("Hello World .. How are you 1\n");}======================================Header File:hello.h#ifndef __HELLO_H#define __HELLO_Hvoid Hello(void);#endif===============================Application...

Sankar S

0 0
0
Programing Languages Learning Tricks
You want to learn that new language or library or framework as soon as possible, right? That’s understandable. Fortunately, there are a handful of tips that can help you to better retain all of that...
H

Harshal G.

0 0
0

Recommended Articles

Make a Career in Mobile Application Programming

Almost all of us, inside the pocket, bag or on the table have a mobile phone, out of which 90% of us have a smartphone. The technology is advancing rapidly. When it comes to mobile phones, people today want much more than just making phone calls and playing games on the go. People now want instant access to all their business...

Read full article >

Learn Hadoop and Big Data

Hadoop is a framework which has been developed for organizing and analysing big chunks of data for a business. Suppose you have a file larger than your system’s storage capacity and you can’t store it. Hadoop helps in storing bigger files than what could be stored on one particular server. You can therefore store very,...

Read full article >

Find C Language Classes near you
C Language Classes in Bangalore
C Language Classes in Hyderabad
C Language Classes in Delhi
C Language Classes in Pune
C Language Classes in Chennai
C Language Classes in Mumbai
C Language Classes in Kolkata
C Language Classes in Ahmedabad
C Language Classes in Noida
C Language Classes in Jaipur

Looking for C Language Classes?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

Looking for C Language Classes?

The best tutors for C Language Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Learn C Language with the Best Tutors

The best Tutors for C Language Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more

ThinkVidya Learning Pvt Ltd © 2010-2025 All Rights Reserved