How to communicate with USB devices?

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Hi,

I am working on a project which need vb to detect and communicate with 2 usb devices. I am quite new to VB. I would like to know how vb detect which usb port the device is connected to. Send me the source code if you can. My email is *REMOVED MAIL*.

Btw, I had downloaded and look at the code from http://www.microsoft.com/downloads/e...DisplayLang=en. I understand this code is used for serial com RS232. Will it work for USB?

Thanks.

Posted 15-Feb-11 19:28pm

Lim Eng Soon

Updated 15-Feb-11 19:41pm

JF2015

v2

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Sandeep Mewara 16-Feb-11 1:41am

why asking for a source code?

Did you try anything? Any effort?

JF2015 16-Feb-11 1:42am

Removed mail address since you will get an automated reply from CP if someone answers your post. BTW, your link is not working.

[no name] 16-Feb-11 22:07pm

Actually i do not have the USB device with me so I cannot test the source code. I will be using one GPRS Modem. Anyone who is an expert in this field?

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Pravin Patil, Mumbai · Answer 1 · 2011-02-15T20:15:00

Solution 1

There is nothing exceptional in accessing USB drive in VB.Net.
You can make use of DriveInfo (Syste.IO namespace) class to access the removable device like USB.
There is a property IsReady which tells whether USB device is connected or not.

Find some good examples on drive info (they are all in C#)
1. http://www.majstro.com/Web/Bedrijf/cs/cs_System_IO_DriveInfo.html[^]
2. http://msdn.microsoft.com/en-us/library/system.io.driveinfo.aspx[^]

Posted 15-Feb-11 20:15pm

Pravin Patil, Mumbai

Comments

[no name] 16-Feb-11 22:08pm

is this only for disk drives? I need to communicate with these devices? will it work?

Pravin Patil, Mumbai 17-Feb-11 4:10am

Which devices are you talking about Lim?
This will work for USB devices, Disk Drives, Removable Media etc.