FancyQMI Library & Tool


fancqmi is a wrapper library for the libqmi-glib modem control library, which can be found under

Location of Packages

SVN: svn+ssh://




This package is standalone program to watch a modem

Installing the fancyqmi tool
apt-get install fancyqmi-tool

Library only

If you only need the library, install the following packages:

Install fancyqmi shared library components
apt-get install libfancyqmi1 libfancyqmi1-dev

Debug symbols

All packages have a counterpart containing debug symbols for gdb:

Install fancyqmi debug symbols
fancyqmi-tool-dbg libfancyqmi1-dbg

Using the command line tool

Watch the modem

The fancyqmi-tool client lets you wath the signal and system info using the following commands:

fancyqmi-tool watch /dev/cdc-wdm0

fancyqmi-tool -ffancyqmi watch /dev/cdc-wdm0
fancyqmi-tool -ffancyqmi watch --poll /dev/cdc-wdm0

These examples watch the modem until the process is interrupted by a signal (Ctrl-C or kill). 

The -ffancyqmi option increases the log level, --poll activates polling instead of listening to unsolicited callback from libqmi-glib.

Cleanup ClientIDs

If client IDs are not released using QmiDmsClient::release() resp. QmiNasClient::release() and the like, the error "ClientIdsExhausted" can occur and even survive cold reboots.

As documented in the ac. mailinglist under the subject SYNC indiciations, performing an arbitrary qmicli command with --device-open-sync can solve this:

qmicli -d /dev/cdc-wdm0 --wds-get-packet-service-status --device-open-sync