how to detect interrupt in Qtopia

Hello I saw Qtopia button application on FriendlyARM.
Please you advise me how to get interrupt signal in Qtopia project,
if have some project example source its might be help me.

Thank you,

I'm unsure about the buttons, specifically. But I can recommend several
places for you to look (assuming you're talking about the buttons on the
board). It's also not terribly clear to me what you're asking.

Look into linux interrupt handling. You want to look for that with respect
to Linux, not Qtopia. It all depends on how they're implemented at the
hardware level.

Additionally, it's possible that the kernel assigned the buttons their own
device. This can be seen by looking through the boot log (`dmesg` or
/var/log/syslog or similar - I don't know how the friendlyARM system is
built yet).