Hi!

quoted

quoted

But overwriting that one file is not possible as it next update of 
linux-firmware package will overwrite it back. It break any normal usage 
of package management.

Also it is ridiculously broken by design if some "boot" files needs to 
be overwritten to initialize hardware properly. To not break booting you 
need to overwrite that file before first boot. But without booting 
device you cannot read calibration data. So some hack with autoreboot 
after boot is needed.

Providing the calibration data via Device Tree is the proper way to
solve this. Yes yes, I know N900 doesn't support it but that's a
deficiency in N900, not Linux.

Linux has to work with whatever hardware provides. You may not like
N900 design, but we have to support it, anyway.

								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html