Reading non-HID USB devices

How can I see what USB devices are connected to my computer and how can I read them?

I have a foot pedal device connected to the USB port, which I can see in Control Panel, System Devices.  I need my program to check when it is connected and know which pedal has been depressed.

There is a DLL that came with it but the manufacturing company are being extremely difficult about telling me the arguments and how it works.

Thanks in advance.
DeliciosaAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

alikoankCommented:
if it is not a standart device you are stuck with company provided driver.

0
DeliciosaAuthor Commented:
There must be some to communicate with the device other than the provided dll, surely?
0
robert_marquardtCommented:
A foot pedal should be a HID device. If not then it is an idiotic design.
Try my HID component from http://www.soft-gems.net/Controls.php first.
It it does not detect a HID device then it gets problematic.

USB devices with its own driver usually need DeviceIOControl calls to communicate with them.
You may need info about the implemented calls from the manufacturer.

Usually you do not enumerate all USB devices, but only the ones belonging to the interface class (aka device interface GUID) of the device.
Communication is through ReadFile, WriteFile and DeviceIoControl.
0
Angular Fundamentals

Learn the fundamentals of Angular 2, a JavaScript framework for developing dynamic single page applications.

robert_marquardtCommented:
Do you have a C header (.h file) for the DLL?
Taht can be converted to Delphi easily.
0
DeliciosaAuthor Commented:
Robert, I've already tried your HID component, sadly it doesn't detect the foot pedals.  I don't have the C header for the DLL file either.  I've been phoning the manufacturer for the last 2 weeks now and have even phoned their head office in Japan, sadly all they do is take my contact details and promise to call me back.
0
robert_marquardtCommented:
Best contact me directly (robert_marquardt@gmx.de) and tell me the name of the company and product.
Playing with tech support is one of my hobbies :->
You can also send me the DLL so i can check how smart they are.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
DeliciosaAuthor Commented:
Thanks Robert, an e-mail is on the way.  :-)
0
DeliciosaAuthor Commented:
Not really answered, but help provided.

Thanks Robert
0
fsalaicesCommented:
Hi Deliciosa, did resolve your problem? I would be greatful for any info you can provide. I want also to access USB devices. You can contact me at fsalaces@gmail.com. Thanks!
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Delphi

From novice to tech pro — start learning today.