The bluetooth module on Toshiba Satellite A300 laptop is not available by default via lspci and lsusb tools. This is because we need to make an acpi call to enable it. Follow these steps to get it working on Debian/Ubuntu linux:
1. Add these repositories to your /etc/apt/sources.list:
deb http://packages.kirya.net/debian/ sid main contrib non-free deb-src http://packages.kirya.net/debian/ sid main contrib non-free
When run
# apt-get update
to synchronize package list.
2. Install package omnibook-source:
# apt-get install omnibook-source
3. Build and setup the omnibook module:
# m-a a-i omnibook-source
4. Create new file called omnibook in /etc/modprobe.d/ folder and put the following content there:
options omnibook ectype=14
5. For autoload this module you can add the line in your /etc/modules:
omnibook
6. Now you can load it manually via command:
# modprobe omnibook ectype=14
The bluetooth icon should be appear in the system tray.
Warning:
I have been using this module on KDE 4.1 without any problems, but after upgrade to KDE 4.2 (or may be some other libs by dependencies), my laptop stopped working through AC power. This post describes this issue.

This trick seems to work with the Satellite A350 under jaunty