ift-extract.info - ift-extract.info

NAME

       ift-extract.info - ift-extract.info

Built-in iSight firmware extractor and patcher

ift-extract extract the Built-in iSight firmware from Apple driver and
patch it to avoid some bugs in it. The firmware is then ready to get
loaded into the chip using ift-load.

* Menu:

Finding the Apple driver: see "Driver"

Command line options: see "Options"

See also "Copying"

1 Finding the Apple driver

ift-extract extract Built-in iSight firmware from Apple iSight driver.
This driver is located at
/System/Library/Extensions/IOUSBFamily.kext/Contents/PlugIns/AppleUSBVideoSupport.kext/Contents/MacOS/AppleUSBVideoSupport
on your Mac OS X root partition.

There is several version of this driver depending on driver version or
host architecture (PowerPC or x86). Thus, ift-extract must determine
know the variant of the driver in order to properly extract the
firmware.

Any AppleUSBVideoSupport file starting with those shipped with iMac G5
iSight must work. If not, please report unknown AppleUSBVideoSupport at
bugreport mail address with machine type and OS X version.

2 Command line options

‘-a’ ‘--apple-driver’ Apple driver filename where to extract the
firmware.

‘-d’ ‘--output-directory’ The directory where to output the firmware.
Defaults to /lib/firmware.

‘-f’ ‘--output-filename’ The output firmware name. Defaults to
isight.fw

‘-?’ ‘--help’ Shows option help and quit.

Since ift-extract defaults to output the firmware to
/lib/firmware/isight.fw, ensure you have the right to do so.

3 Copying

isight-firmware-tools is a project developped by Étienne Bersac based
on the work of Ronald S. Bultje, Johannes Berg and Ivan N. Zlatev.

This manual has been written by Étienne Bersac.