> ## Documentation Index
> Fetch the complete documentation index at: https://dragonwingdocs.qualcomm.com/llms.txt
> Use this file to discover all available pages before exploring further.

# QMI References

> QMI message format, descriptor encoding, and client/service interface references.

## Protocol references

* [QMI messaging and kernel interface](https://android.googlesource.com/kernel/msm/+/android-7.1.0_r0.2/Documentation/arm/msm/msm_qmi.txt)

## Topics covered in this section

* client/service messaging
* request, response, and indication flags
* TLV encoding
* descriptor-driven marshaling
* synchronous and asynchronous requests
* service registration and callbacks