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[greeen@iii.org.tw: Keypad driver!!]

To: linux-mips@fnet.fr
Subject: [greeen@iii.org.tw: Keypad driver!!]
From: Ralf Baechle <ralf@uni-koblenz.de>
Date: Mon, 12 Mar 2001 13:26:12 +0100
User-agent: Mutt/1.2.5i
----- Forwarded message from "Greeen-III" <greeen@iii.org.tw> -----

From: "Greeen-III" <greeen@iii.org.tw>
Date: Mon, 12 Mar 2001 09:17:24 +0100 (MET)
To: "LinuxEmbeddedMailList" <linux-embedded@waste.org>,
        <linux-mips-request@fnet.fr>
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.
Right?

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

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

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