#9385 NORM 1.5-BTe: WLAN and Disk LEDs blink when suspending/resuming

Zarro Boogs per Child bugtracker at laptop.org
Thu Sep 3 21:13:03 EDT 2009


#9385: WLAN and Disk LEDs blink when suspending/resuming
-------------------------------------------+--------------------------------
           Reporter:  wad                  |       Owner:  wmb at firmworks.com
               Type:  enhancement          |      Status:  assigned         
           Priority:  normal               |   Milestone:  1.5-BTest        
          Component:  ofw - open firmware  |     Version:  1.5-A1           
         Resolution:                       |    Keywords:                   
        Next_action:  code                 |    Verified:  0                
Deployment_affected:                       |   Blockedby:                   
           Blocking:                       |  
-------------------------------------------+--------------------------------
Changes (by wmb at firmworks.com):

  * status:  new => assigned


Comment:

 It appears that the rev-B boards have a redesigned circuit so the default
 state of that GPIO causes the LED to be off.  That's good, because when I
 set the GPIO low in the early startup code to turn the LED off for A-test
 boards, the LED still flashes noticeably.  I'm not sure that it will be
 feasible to turn it off quickly enough to avoid visible flashing.

 Nevertheless, I have modified the early startup code to explicitly set
 that GPIO pin low for rev A, high (the default) for rev B.  On B, the LED
 remains off during suspend cycles.  On A, it flashes despite the code
 change.

-- 
Ticket URL: <http://dev.laptop.org/ticket/9385#comment:1>
One Laptop Per Child <http://laptop.org/>
OLPC bug tracking system


More information about the Bugs mailing list