communication usb

[pdinox]

Hi guys,
I would like create a graph that acquire the information through USB. I have the informations of y-axis that is divided it in 255 parts. Then, my external device writes the USB buffer with this protocol kind @[0-255]\n. @ is the start of my value, [0-255] is my value and the \n is the end of transmission. How you think to program this.

Thanks

[CorraDIT]

Hi pdinox, have you already read this?

Using Third-Party USB or FireWire Devices with LabVIEW or LabWindows/CVI

http://digital.ni.com/public.nsf/allkb/42B604435E3F9604862565E20043CD30?OpenDocument

Also, maybe this example from the community can help you out:

https://decibel.ni.com/content/docs/DOC-44161

[Dennis_Knutson]

That protocol does not seem to be USB RAW but from a virtual com port. If that's the case, ignore the information in the first link and just use serial functions to read the data.