#12616 NORM 13.2.0: Makey Makey board not recognized by HID on XO-4

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#12616: Makey Makey board not recognized by HID on XO-4
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           Reporter:  mike_lee  |       Owner:  dsd          
               Type:  defect    |      Status:  new          
           Priority:  normal    |   Milestone:  13.2.0       
          Component:  distro    |     Version:  not specified
         Resolution:            |    Keywords:               
        Next_action:  diagnose  |    Verified:  0            
Deployment_affected:            |   Blockedby:               
           Blocking:            |  
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Changes (by Quozl):

  * next_action:  never set => diagnose
  * milestone:  13.1.0 => 13.2.0


Comment:

 Research:
  * there is no obvious ''.config'' difference between the 12.1.0 build 21
 kernel 1ce9500 and the 13.1.0 build 36 kernel 4fc7bc3 that would explain
 this symptom,
  * neither the vendor 1b4f nor product 2b75 appear as quirks in the kernel
 source for those versions, nor in the upstream ''master'' branch at
 kernel.org.
  * the device does present a HID capability, according to your ''lsusb''
 output,
  * the kernel activates ''usbhid'' and ''input'' modules for this device
 in your XO-1.5 and XO-4 ''dmesg'' output,
  * other ''usbhid''/''input'' devices work fine for me on 13.1.0 build 36
 on XO-1.5 and 13.2.0 build 7 on XO-4.

 Speculation:
  * something strange about the device descriptors reported by the device
 is inhibiting events; do the IRQ 44 counters shown by /proc/interrupts
 increment when key events are sent by the device?  They do when I use a
 USB keyboard.
  * the XO-4 B1 USB may be faulty; does a USB keyboard or USB mouse work
 with the XO-4 B1 in the same USB socket?
  * the key events are not reaching Etoys 5 but they might well be reaching
 other activities or console; does Terminal or the text console show any
 output?

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Ticket URL: <http://dev.laptop.org/ticket/12616#comment:9>
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