Openmoko Bug #2171: stable-tracking 80f4b57/resume: eth0: ERROR while getting interface flags: No such device

[Openmoko Public Trac]

#2171: stable-tracking 80f4b57/resume: eth0: ERROR while getting interface flags:
No such device
-----------------------------+----------------------------------------------
 Reporter:  lindi            |          Owner:  openmoko-kernel
     Type:  defect           |         Status:  new            
 Priority:  normal           |      Milestone:                 
Component:  System Software  |        Version:  unspecified    
 Severity:  normal           |       Keywords:                 
 Haspatch:  0                |      Blockedby:                 
Estimated:                   |    Patchreview:                 
 Blocking:                   |   Reproducible:                 
-----------------------------+----------------------------------------------

Comment(by werner):

 Okay, if you use power_on, that's expected. What power_on does is a reset
 of the module, but completely behind the back of everything else.

 Unbind/bind has pretty much the same effect (one layer above power_on),
 so that's where you get the correct on/off action.

 But what's the whole story ? Do you want to enter a power-saving state ?
 There are currenly three choices for this that aren't specific to the
 WLAN module: unbind/bind, suspend/resume (*), and module unload/load.
 They all should produce the same effect, namely that the driver gets
 removed and the module powers down.

 (*) That is, unless you've set the "persist" option of the S3C MMC
     driver.

 Furthermore, you can use wmiconfig to disable the module without driver
 removal. --power rec sets a sensible power consumption and --wlan disable
 turns off transmission and rejects other ioctls until --wlan enable.

 - Werner

-- 
Ticket URL: <https://docs.openmoko.org/trac/ticket/2171#comment:4>
docs.openmoko.org <http://docs.openmoko.org/trac/>
openmoko trac