stable BT connection w/ cacko rom v1.21a

well, in using cacko rom, the BT drivers became unstable with Nokia CF card. After a loooooooong trial, i've found that changing the clock speed help improving the stability.

echo xxx > /proc/cccr_change
where xxx =
162 overclock
161 default (PXA255)
242 normal
241 default (PXA250)
121 power saving
(referring to /home/zaurus/Settings/freqchange.conf)
putting this command to ip-up (xxx = 121) and ip-down (xxx = 161) help to maintain a stable BT connection during web browsing and email.