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QMI: Difference between revisions
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The Qualcomm MSM Interface is a binary protocol that seeks to replace the Hayes AT command set for modems. | The Qualcomm MSM Interface is a binary protocol that seeks to replace the [https://en.wikipedia.org/wiki/Hayes_command_set Hayes AT command set] for [[Cellular|cellular modems]]. It defines a set of services: | ||
* CTL -- control | |||
* DMS -- device management | |||
* NAS -- network access | |||
* WDS -- wireless data | |||
* WDA -- wireless data administration | |||
* WMS -- wireless messaging | |||
* PDS -- position determination | |||
* PBM -- phonebook management | |||
* UIM -- user identification module | |||
* OMA -- open management alliance | |||
On Linux, QMI is primarily driven through the [https://www.freedesktop.org/software/libqmi/libqmi-glib/latest/ qmi-glib] library and the [https://www.freedesktop.org/wiki/Software/libqmi/ qmicli] tool, using the cdc-wdm and qmi_wwan drivers. A client context must be acquired from the CTL service to use most other services. Services implement "Requests" and "Indications": indications are sent to subscribed clients, while requests are bound to a client context, pipelined, and can be answered out of order. Input and output arguments are defined as TLVs (Type-Length Values). | |||
==Device Management Service== | |||
* Retrieve ESN/IMEI/MEID: <tt>qmicli --dms-get-ids</tt> | |||
* Retrieve IMSI: <tt>qmicli --dms-uim-get-imsi</tt> | |||
Latest revision as of 00:46, 10 July 2019
The Qualcomm MSM Interface is a binary protocol that seeks to replace the Hayes AT command set for cellular modems. It defines a set of services:
- CTL -- control
- DMS -- device management
- NAS -- network access
- WDS -- wireless data
- WDA -- wireless data administration
- WMS -- wireless messaging
- PDS -- position determination
- PBM -- phonebook management
- UIM -- user identification module
- OMA -- open management alliance
On Linux, QMI is primarily driven through the qmi-glib library and the qmicli tool, using the cdc-wdm and qmi_wwan drivers. A client context must be acquired from the CTL service to use most other services. Services implement "Requests" and "Indications": indications are sent to subscribed clients, while requests are bound to a client context, pipelined, and can be answered out of order. Input and output arguments are defined as TLVs (Type-Length Values).
Device Management Service
- Retrieve ESN/IMEI/MEID: qmicli --dms-get-ids
- Retrieve IMSI: qmicli --dms-uim-get-imsi
