Re: [RFC] Dynamic boot logo

[Rodolfo Giometti <giometti@enneenne.com>]

On Mon, Aug 06, 2007 at 09:53:24AM +0200, hinko.kocevar@cetrtapot.si wrote:
> 
> We would like to have this feature on my embedded system too! Currently 
> we are using bitmap file converted to standard header file and then 
> compiled in the kernel, which is not flexible at all.

Yes, I see.

> Maybe you could access the same flash memory from the Linux too - using 
> either physical or virtual address space, eg. by I/O or memory mapping it.

Yes, I know, but _how_ can I do it? :) In u-boot is very easy but in
Linux I still haven't found a good way to do so.

> Another way could be using a dedicated kernel module for the job - eg. 
> you compile the graphic support in the module and the when update is 
> needed only module can be replaced in the file system leaving kernel 
> intact (at least while kernel version does not change).

This is not solve the problem, you still need a compilation stage. I
wish avoiding it. And, on the other hand, you cannot load a kernel
module since you don't mount a root filesystem which is very late
during boot.

Ciao,

Rodolfo

-- 

GNU/Linux Solutions                  e-mail:    giometti@enneenne.com
Linux Device Driver                             giometti@gnudd.com
Embedded Systems                     		giometti@linux.it
UNIX programming                     phone:     +39 349 2432127

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