NOTE: this page is for archival only, see the note at the end of the page.


The libertas driver made it's debut in the OLPC laptop, where drives an Marvell 88W83886 USB device. Later driver front ends for similar chips which use compact flash or SDIO have been written.

supported chips

  • Marvell 88W8385 CF/SDIO
  • Marvell 88W8386 USB

available devices

  • AmbiCom WL54CF (CF)

  • SparkLAN WCFM-100 (CF)

  • prototype boards
  • OLPC laptop


  • station (with limited roaming support)
  • ad-hoc
  • Mesh on USB devices (802.11s like)

device firmware

All devices need firmware. For the USB firmware, go to Marvell's driver download page and search for OLPC.

For CF/SDIO, get the firmware extractor utility via

  • git clone git:// tools

There's a makefile in there that will do the job. Then you will have two files libertas_helper.fw and libertas.fw in the fwcutter/ directory. Copy both files into /lib/firmware/ and the driver should be able to load it automatically when you insert the card / powerup the device.

This is a static dump of the old wiki, taken after locking it in January 2015. The new wiki is at
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