Date: Wed, 21 Jan 2009 00:08:25 +0100 (CET)
From: Jiri Kosina <jkosina@suse.cz>
To: mike zheng <mail4mz@gmail.com>
cc: linux-kernel@vger.kernel.org
Subject: Re: How to check input device
In-Reply-To: <5c9cd53b0901201343k11289f2dg24c62609cb42c494@mail.gmail.com>
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References: <5c9cd53b0901201343k11289f2dg24c62609cb42c494@mail.gmail.com>
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On Tue, 20 Jan 2009, mike zheng wrote:

> It is the first time for me to use the input device. I have a keypad 
> driver registers a keypad the device as an input device in the kernel 
> 2.6. The registration of the driver is OK, I can see the interrupt 
> whenever there is key pressed. How can I verify if it works fine? Where 
> can I check keycode value of the key pressed?

If the input device is registered properly, there should be corresponding 
/dev/input/eventX created. Running evtest (from input-utils) on this 
node will decode and dump all the scancodes/keycodes that come out of the 
corresponding input device.

-- 
Jiri Kosina
SUSE Labs

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