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[ Keypad driver!!]

Subject: [ Keypad driver!!]
From: Ralf Baechle <>
Date: Mon, 12 Mar 2001 13:26:12 +0100
User-agent: Mutt/1.2.5i
----- Forwarded message from "Greeen-III" <> -----

From: "Greeen-III" <>
Date: Mon, 12 Mar 2001 09:17:24 +0100 (MET)
To: "LinuxEmbeddedMailList" <>,
Subject: Keypad driver!!

Hi all experts,
I am trying to implement a keypad driver on Linux/MIPS.
Could Any one explain the keypad work?
I traced the /drivers/char/keyboard.c.
It seemed to create a timer interrupt.
The timer toggle the handle to check the status of the keyboard.

But!! How could we know the keypad is pressed?
The driver didn't need to call request_irq()??

----- End forwarded message -----

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