[U-Boot-Users] Interrupt on at91sam9261ek for device keypad

Pranav Desai pranavdes at gmail.com
Wed Dec 19 10:54:28 CET 2007


I am a newbie on u-boot development and am working on at91sam9261ek
board. I needed the device keypad(keypad works on pio lines) to work
with u-boot.  I wrote a driver of sorts for this keypad. But got stuck
at registering an interrupt for it.

Although I eventually found a work around by polling the status
registers and the keypad worked perfectly, I just wanted to know if it
is possible to do so using interrupt handling ? As searching the list
I came across many posts which said that u-boot does not support
interrupt handling.

If this cannot be done then do I have to do something manually in
order for interrupt handling to work? Please enlighten me :)

Thank you


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