Comment 4 for bug 33855

The original driver website is at http://www.da-cha.org/letsnote/index.html. This hasn't had any updates since 2004. As noted in the source the latest version was simply including modifications by Yokota Hiroshi.

Yokota Hiroshi has his own website where he continues to update the driver: http://www.netlab.cs.tsukuba.ac.jp/~yokota/izumi/panasonic_acpi/
This is where the new driver posted above can be found.

I'm now using Yokota's driver on my panasonic cf-t2 and it is working fine.