so, it seems that kp49 is "broken" in part concerning "evil" i2c path, and nobody found this up to date? Interesting, and quite ironically. I haven't been using kp49, so I can't confirm this - can anyone knowledgeable check how kp49 behaves here?
Module is indeed loaded "out of the box"
Nokia-N900:~# uname -r 2.6.28.10-bfs7 Nokia-N900:~# lsmod | grep bq Nokia-N900:~#
very good so far, no issues for me except for 1. with touch screen vibration on, its not consistant. the length and strength(?) varies.
In the previous thread of kernel-bfs, there was a some sort of solution - to install fcam-drivers-bfs with dpkg --auto-deconfigure, so it will not delete packages, just deconfigures. In my case, fcam-drivers-bfs only conflicts with fcam-drivers, not replaces and not provides it, so blessn900 appears to be broken(but fCam works fine).
Update: Uh-oh, i have just got an unexpected reboot. What even could cause it?