Dear all:
I am using uclinux-2.4.19,
I wanna to use hardware scan to implement my keyboard driver.
So I need to register a interrupt use request_irq.
I have 14 interrupts, and using 8/13 for eth0/1, 6 for serial, 11 for timer.
=========
# /mnt/nfs-server/busybox cat /proc/interrupts
CPU0
6: 689 imj_irq serial
8: 147 imj_irq eth0
11: 3759 imj_irq timer
13: 0 imj_irq eth1
ERR: 0
=========
At first, I register IRQ_12 for keypad, and do some
keypad_scan_enable_command.
But, I didn't get any response when I pressed a key.
So, according as CPU spec, I register IRQ_4 to my keyboad
interrupt, and do the same keypad_scan_enable_command.
But, when I pressed a key, system collapse----cann't do anything by
console and ping command have no response.
Does this means that the IRQ_4 is arised ?
If the answer is "yes", why does the system collapse happens?
Additionally, why IRQ_12 can't response when key pressed?
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