#3355 HIGH Update.: Wireless shutdown on Laptop Lid Close

Zarro Boogs per Child bugtracker at laptop.org
Wed Dec 19 00:43:17 EST 2007


#3355: Wireless shutdown on Laptop Lid Close
----------------------------------+-----------------------------------------
  Reporter:  kimquirk             |       Owner:  cjb      
      Type:  defect               |      Status:  new      
  Priority:  high                 |   Milestone:  Update.1 
 Component:  power manager (OHM)  |     Version:           
Resolution:                       |    Keywords:  update.1?
  Verified:  0                    |  
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Comment(by dwmw2):

 Ashish, thank you. Can you recommend the best way to quiesce the device
 while we sleep?

 Would it suffice to assert (and hold) the RESET line, then release it when
 we awake? Or should the (CMD_802_11_RESET, CMD_ACT_HALT) command do it? We
 don't busy-wait in boot2 code?

 The RESET line would be easier, because then the device will disappear
 from the USB bus and reappear as a 'different' device, and the driver will
 cope gracefully. If we issue the RESET/HALT command, I believe we then
 have to cope with reloading the firmware at runtime on the _same_ logical
 instance of the device. Which is something we'd like to do, but wasn't
 necessarily at the top of my priority list for this week.

 What would give the lowest power consumption?

-- 
Ticket URL: <http://dev.laptop.org/ticket/3355#comment:23>
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