Latest QMI specification


Our company is doing SW development for vxWorks based hosts which communicate to MC74xx series modems using QMI interface.

I’m wondering if there is any way for us get an NDA signed to get access to the latest documentation. If it has to be signed with Qualcomm may be SierraWireless can provide us with a contact there.

My e-mail is

Thank you in advance,
Best regards,
Dmitri K


As you have guessed the QMI specification is a QC owned document to which only we have access specifically because we a re a QC licensee for which we pay a significant sum of money. It is not just a case of signing an NDA between you and QC, you would also need to become a licensee yourselves, that is, unless you have contacts within QC who can facilitate (we do have customers who are strategically important to them so have access).

If this is not the case then I am afraid you will not be able to get hold of the spec.



Hi Matt,

Thank you very much for your reply.
We will get in touch with QC.

Best regards,
Dmitri K