#11288 NORM 1.75-so: XO-1.75 accelerometer chip change

Zarro Boogs per Child bugtracker at laptop.org
Thu Oct 13 01:29:13 EDT 2011

#11288: XO-1.75 accelerometer chip change
           Reporter:  Quozl   |       Owner:  Quozl        
               Type:  task    |      Status:  new          
           Priority:  normal  |   Milestone:  1.75-software
          Component:  kernel  |     Version:               
         Resolution:          |    Keywords:               
        Next_action:  design  |    Verified:  0            
Deployment_affected:          |   Blockedby:               
           Blocking:          |  
Changes (by Quozl):

  * component:  ofw - open firmware => kernel
  * milestone:  1.75-firmware => 1.75-software


 Included in Q4B12, tested locally, now it's over to Saadia for Linux
 kernel changes.

 * the i2c device address changes from 0x3a to 0x32, which means it should
 be possible to detect whichever is present,
 * there are two bytes per vector instead of one,
 * the bits for activating self test have moved from CTRL_REG1 to
 * the self test should be done in high resolution mode (CTRL_REG4 bit 3),
 * the self test result expected range has changed, and in particular for
 the Z axis is much greater.

Ticket URL: <http://dev.laptop.org/ticket/11288#comment:3>
One Laptop Per Child <http://laptop.org/>
OLPC bug tracking system

More information about the Bugs mailing list