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Bug 1261179

Summary: ModemManager does not enable CDMA-capable MBIM modems (upstream ModemManager patch)
Product: Red Hat Enterprise Linux 7 Reporter: David Ward <david.ward>
Component: ModemManagerAssignee: Lubomir Rintel <lrintel>
Status: CLOSED ERRATA QA Contact: Desktop QE <desktop-qa-list>
Severity: medium Docs Contact:
Priority: medium    
Version: 7.1CC: david.ward, dcbw, kzhang, lrintel, rkhan, vbenes
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2016-11-04 08:31:18 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1301628, 1313485    

Description David Ward 2015-09-08 19:24:41 UTC 
Modems such as the Sierra Wireless EM7355 (and the re-branded Dell Wireless 5808e) are not enabled by ModemManager in the MBIM configuration, because it fails when attempting CDMA initialization on a non-existent AT port. This was fixed upstream and ported back to stable releases of ModemManager:

http://cgit.freedesktop.org/ModemManager/ModemManager/commit/?id=2034918d7b015f1176ec135cc023d4d161db56f7

This patch was applied cleanly to the RHEL 7 ModemManager package and found to resolve the issue with the Dell Wireless 5808e. Please update the ModemManager package in RHEL 7 to include this patch.
Comment 2 Mike McCune 2016-03-28 22:57:02 UTC 
This bug was accidentally moved from POST to MODIFIED via an error in automation, please see mmccune with any questions
Comment 4 Vladimir Benes 2016-09-21 13:33:45 UTC 
David, what about here? Could you please check?
Comment 5 Vladimir Benes 2016-09-28 12:04:13 UTC 
 Sierra Wireless EM7355 works in both MBIM and QMI modes.
Comment 7 errata-xmlrpc 2016-11-04 08:31:18 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHEA-2016-2556.html