Daniel O'Connor wrote:
On Thu, 23 Sep 2004 04:18, Tim Pushor wrote:
My question is, I would really like to be able to display various things during startup, shutdown, and once shutdown is complete to the LCD. I assume I would have to modify the kernel for this. I done lots of C programming, and hardware interface programming in C and assembler, but never any UNIX kernel programming.
First of all, is this doable? Also, would it be easier (from the kernel
programming perspective) to do this via USB or Serial?
Opening a device etc from the kernel would be moderatly painful.. It write a userland program which did it first and then port it.
Daniel,
Theres' really nothing to port. I just want to output various things at different points in the bootup process, and again when the system is safe to shut off.
How painful is it to open/use a device from inside the kernel?
Thanks, Tim
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