#2258 BLOC CTest: Power savings in keyboard/touchpad in suspend/resume in *new version for MP*

Zarro Boogs per Child bugtracker at laptop.org
Wed Jul 18 05:54:01 EDT 2007


#2258: Power savings in keyboard/touchpad in suspend/resume in *new version for
MP*
---------------------+------------------------------------------------------
 Reporter:  jg       |       Owner:  dilinger
     Type:  defect   |      Status:  new     
 Priority:  blocker  |   Milestone:  CTest   
Component:  kernel   |     Version:          
 Keywords:           |    Verified:  0       
---------------------+------------------------------------------------------
 From Shiga-san

 The down of power operation that had gotten into the news with the mail
 before was built in from the following C-TEST  ver
 ?
 Product     :? C-test     (  Production day:    July.20 )
 Device ID  :   67  00 3C  --->   67 00 50

 Besides this, the executive program for mass production was built in.


 It is details of PowerDown mode.
 -----------------------------------------------------------------------------------------
 10)  The PowerDown Mode command (All functions are stopped).         *D
 ver
        EC EC EA EC  :  PowerDown Mode(Suspend mode)

   If the command is received, the function is stopped and it becomes low
 current consumption operation.  The restoration method enters the state of
 Power ON by making the MS-DAT signal Low.
 Afterwards, the communication will become possible in about one second.

 ex.   EC(FA)  EC(FA)  EA(FA)  EC(FA)
 ------------------------------------------------------------------------------------------

 Current consumption becomes about 50uA when becoming this mode.
 The method of operation again is a thing to make the signal line of  MS-
 DAT Low. This operation is the same as doing operation that sends the
 command  to HGPK (device).

-- 
Ticket URL: <http://dev.laptop.org/ticket/2258>
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