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Need pointers for USB HID [message #58184]

Sun, 13 March 2022 07:19

jerson
Messages: 202
Registered: June 2010
Location: Bombay, India

Experienced Member

Greetings all

I've been away from PC side coding for quite a while and I am totally blind on how to implement USB HID interface with an OWON Digital Storage Oscilloscope (DSO) for Windows and / or Linux.

I am requesting for any pointers to example code that may be easy for a newbie level person to follow though I have done some work in UPP in the past.

Any help appreciated.

Thanks

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Re: Need pointers for USB HID [message #58185 is a reply to message #58184]

Sun, 13 March 2022 20:44

Zbych
Messages: 325
Registered: July 2009

Senior Member

First step should be checking if somebody already created communication library.
If not (which I doubt), check HID usage tables reported by device
https://www.usb.org/hid
https://www.usb.org/sites/default/files/documents/hut1_12v2. pdf

If your device reports back as "generic hid", you need to get a description of "reports" that device recognizes, since they are device specific.

To be honest, I really doubt that your oscilloscope uses USB HID class, it is just to slow to send measurement information to a PC.

[Updated on: Sun, 13 March 2022 20:48]

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Re: Need pointers for USB HID [message #58186 is a reply to message #58185]

Mon, 14 March 2022 03:54

jerson
Messages: 202
Registered: June 2010
Location: Bombay, India

Experienced Member

Thanks for your valuable inputs.

The protocol supported by the USB device is called UHCI_HCD. I found a sample code online called owondump and am trying to get it to compile, but it failed complaining of libudev.h being missing. I just installed the libudev-dev package and hope the example code will compile. That will be a good starting point I think.

Regards

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