** Description changed:
When mobile broadband is disabled, Sierra modems are not turned off (set
in low power mode, CFUN=4).
- Fixed upstream MM master/0.7, but fix needs to be added to 0.6 branch.
+ Fixed upstream MM master/0.7, and by the following commits in to 0.6
+ branch:
+
+ commit 2df73f4db46590e7dfefcb5e1a6712b2ee5d12c0
+ Author: Marius B. Kotsbak <[email protected]>
+ Date: Sun Sep 9 16:17:46 2012 +0200
+
+ sierra: use +CFUN=4 for powering down
+
+ commit bee7f0b83fff0c86ae994c75892eef6a4a9584ab
+ Author: Marius B. Kotsbak <[email protected]>
+ Date: Tue Oct 30 18:31:52 2012 +0100
+
+ sierra: avoid reset when setting cfun=1
+
+ Some Sierra modems trigger a reset of the modem when sending +cfun=1,
+ which is more likely when +cfun=4 is used for powering down since +cfun=1
is
+ skipped if mode is already 1. All sierra modems supports a second
parameter
+ to indicate that no reset is to be done: "+cfun=1,0".
+
+
+ commit 814febe1fd9baacdb33c79f11c140187df36c4f1
+ Author: Dan Williams <[email protected]>
+ Date: Tue Oct 30 16:16:25 2012 -0500
+
+ sierra: fix CFUN power up delay handling
+
+ 1) all Sierra devices appear to require short delay after powering up,
+ otherwise subsequent commands may return errors. Older devices need
+ longer so ensure new devices are penalized just for being new.
+
+ 2) When the modem is already in full functionality status and no power
+ up command was sent, there's no need to delay, which was happening
+ regardless of what state the modem was already in. Detect whether
+ the power up was actually executed (response and error will be NULL)
+ and only delay if it was executed.
+
+ and maybe:
+
+ commit 10745cb32c5fe3b77bfc95a2a1f51b0896435238
+ Author: Dan Williams <[email protected]>
+ Date: Tue Oct 30 18:38:50 2012 -0500
+
+ sierra: allow more time for PDP context activation
+
+ 3 seconds isn't always enough to set up the context with the network.
** Changed in: modemmanager
Status: In Progress => Fix Committed
** Changed in: modemmanager
Assignee: Marius Kotsbak (mariusko) => (unassigned)
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https://bugs.launchpad.net/bugs/1072212
Title:
Sierra modems are not powered down when mobile broadband is disabled
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