This also affects me. I've tried with isight-firware-tools 1.6 from source, and there was no difference.
I have a Macbook 4,1. This worked under 10.04, but not 11.04.
lsusb: Bus 002 Device 003: ID 05ac:8300 Apple, Inc. Built-in iSight (no firmware loaded)
ls -l /lib/firmware/isight.fw: -rw-r--r-- 1 root root 10871 2011-05-06 11:43 /lib/firmware/isight.fw
This also affects me. I've tried with isight- firware- tools 1.6 from source, and there was no difference.
I have a Macbook 4,1.
This worked under 10.04, but not 11.04.
lsusb:
Bus 002 Device 003: ID 05ac:8300 Apple, Inc. Built-in iSight (no firmware loaded)
ls -l /lib/firmware/ isight. fw: isight. fw
-rw-r--r-- 1 root root 10871 2011-05-06 11:43 /lib/firmware/