In message 20040407155430.31430.qmail@web15214.mail.bjs.yahoo.com you wrote:
Thanks for your detailed points.I knew LWMON with a i2c keyboard driver from your post.BTW,which file is this LWMON keyboard driver in ELDK3.0 kernel code?As for others,I would like to have a look at them.
The LWMON project uses a frozen version of the Linux kernel code, so we didn't port their board to a more recent kernel version yet. Please see arch/ppc/8xx_io/lwmon_kbd.c in the (old ) linux-2.4 kernel tree.
For interactive use.We have a special keyboard with 80 keys or so.We plan to code the driver in LINUX.But if implentmented in u-boot as well,it would be perfect.
Then you will probably use something similar to the standard PC keyboard code; feel free to peek into drivers/ps2*.c in the U-Boot sources.
that to test some possibilities.I really cannot understand RBC823 init process of its keyboard.
I don't know this hardware either.
Thanks for your kind help!
You are welcome.
Best regards,
Wolfgang Denk