Touch based Dual Boot Menu
werner at openmoko.org
Sat Dec 27 06:27:17 CET 2008
> I want to have a boot menu which shows the touch based
> platform selection options.
You mean you want to have a boot menu (instead of the current u-boot
menu) that uses the touch screen ?
> Is that possible to do?
That would certainly be possible to do, but ... may I suggest that,
if you embark on that mission, that you base your work on Qi ?
More specifically, that you don't actually change the boot loader
but make a small Linux system that does nothing but bring up the
menu and then execute the respective choice with kexec.
An example of such a system is in
(that's the infrastructure for the work-in-progress GSM firmware
update, so please just ignore everything that says "GSM" or
This is a little more work than just hacking a touch screen driver
into u-boot, but it also gives you a lot more flexibility, and you
don't have to duplicate functionality we already have in the kernel.
(E.g., touch screen filtering :-)
Plus, we plan to bury u-boot before long (and dance on its grave),
but a kexec-using solution would remain usable virtually forever.
More information about the devel