USB HID question

[opium]

hi again.
i'm working with USB interfaces, in a audience meter project.
i was successfully working upon USB BULK transfer, but the software engineers here want it to work on HID sub protocol, in order to simplify the adaptation process.
i've  been reading around the forum, but i couldn't find how to configure this sort of transfer by library, as i do with bulk. 

i just need to receive two packets of 8bits each, and send one of 8 bits too.

does anybody knows how to do it?
or have experience in something similar by visa?¿?

thanks a lot!!

[Diogo_Ap.]

Hi

Follow a link for your query:

http://zone.ni.com/devzone/cda/epd/p/id/3622

Diogo

[opium · Accepted solution]

I've said that I was actually doing it by bulk.



Anyway, I found my way throw HID whit the VISA wait for interruption, and it is working fine, or at least in IN mode (uc to host). But IM not been able of doing it in OUT mode. I don't know why, but it simply doesn't work.

Whatever this is my vi, particularly, it receive and store the data in a *txt file according to some parameters.

Any doubts about it, don't forget to tell me.



Bye

[sam-potter]

Hi, a little late response, but here is what you are looking for: http://www.ahidlib.com

Some examples for LabVIEW can be found in the download area.