11.3.1 development build 27 for XO-1.75

Martin Langhoff martin at laptop.org
Thu Feb 9 14:08:20 EST 2012

This build merges kernel 3.0.19 (with security fixes), includes fixes
for S/R hangs, WLAN
during suspend/resume and serial port driver. Touchpad configuration
is updated, and we have better power management while in ebook mode.


 - A frequent cause of suspend/resume hangs has been diagnosed, and we
have a workaround. S/R should be stable in this build. Do let us know
if you hit a hang when suspending/resuming.

 - The getty on the serial port is _disabled_ by default now (that's
the workaround). It gets enabled when you hold the "check" game key
during boot (for verbose boot).

 - Wake-on-LAN has fixes, and needs testing.

Download from:


Fixes (please help us confirm):

#11061 OFW XO-1.75 - implement firmware update security
#11396 Implement Linux support for wake-on-lan on MMP2
#11581 AVC touchpads -- 4F configuration jumpy for some users
#11285 Add Bluetooth modules to kernel XO-1.75
#11317 Update Portfolio to version 13 in 11.3
#11330 Touchpad output not rotated when rotate key pressed to get out
of suspend mode
#11418 Review and include siv120d camera sensor driver
#11614 Performance problems in Read activity reading EPUB books

--- os26/xo1.75/os26.packages.txt	2012-01-30 13:11:06.000000000 -0500
+++ os27/xo1.75/os27.packages.txt	2012-02-09 14:03:07.000000000 -0500

--- os26/xo1.75/os26.activities.txt	2012-01-30 13:11:05.000000000 -0500
+++ os27/xo1.75/os27.activities.txt	2012-02-09 14:03:06.000000000 -0500

Simplified kernel changelog:
 - All of 3.0.9
 - siv120d video camera sensor driver
 - olpc: convert device-tree code to support both prom DT and flat DT
 - OLPC XO-1.75 - an epitaph of kernel log buffer for CForth to read
 - OLPC XO-1.75 - disable serial driver by default, add command line options
 - OLPC XO-1.75 - enable serial ports when check button is used
 - use psmouse_[de]activate() from sentelic and hgpk drivers
 - psmouse:  create an 'enabled' sysfs attribute, to squelch the mouse
 - OLPC RPM: enable bluetooth support (#11285)
 - resync defconfig after "make oldconfig"


 martin at laptop.org -- Software Architect - OLPC
 - ask interesting questions
 - don't get distracted with shiny stuff  - working code first
 - http://wiki.laptop.org/go/User:Martinlanghoff

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