#1752 BLOC Trial-2: USB wireless suspend/resume failure at setup phase

Zarro Boogs per Child bugtracker at laptop.org
Thu Jun 28 22:59:19 EDT 2007


#1752: USB wireless suspend/resume failure at setup phase
-----------------------+----------------------------------------------------
  Reporter:  marcelo   |       Owner:  marcelo
      Type:  defect    |      Status:  new    
  Priority:  blocker   |   Milestone:  Trial-2
 Component:  wireless  |     Version:         
Resolution:            |    Keywords:         
  Verified:  0         |  
-----------------------+----------------------------------------------------
Comment (by jcardona):

 '''One more test:''' I added a debugfs hook that sends the command to the
 wlan firmware to detach from USB.  Then, using
 [http://dev.laptop.org/~wmb/sdkit.tgz sdkit] I toggled GPIO15, which
 signals the wlan firmware to reattach to the USB bus.

 The results on both laptops were identical:  the wireless module detaches
 correctly, and reattaches when signaled.  The setup phase (enumeration) is
 successful.  Logs for
 [https://cozybit1.dnsalias.org/~javier/debug_olpc_usb/debugfs-resume-good-
 xo.log xo1] and [https://cozybit1.dnsalias.org/~javier/debug_olpc_usb
 /debugfs-resume-bad-xo.log xo2].  (Note that the wlan reset that appears
 after enumeration is triggered by the driver when it fails to download the
 firmware.  Under normal resume, there is no attempt to download firmware.)

-- 
Ticket URL: <http://dev.laptop.org/ticket/1752#comment:9>
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