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Date: Tue, 20 Jan 2009 16:43:23 -0500 From: mike zheng <mail4mz@...il.com> To: linux-kernel@...r.kernel.org Subject: How to check input device Hello, 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? Thanks in advance, Mike Here is what I have in system: # cat /proc/bus/input/handlers N: Number=0 Name=kbd N: Number=1 Name=evdev Minor=64 # cat /proc/bus/input/devices I: Bus=0019 Vendor=0001 Product=0001 Version=0100 N: Name="keypad" P: Phys=keypad/input0 S: Sysfs=/devices/virtual/input/input0 U: Uniq= H: Handlers=event0 B: EV=20003 B: KEY=102374 82c193c 53ff8708 1 B: LED=285 # ls -l /sys/devices/virtual/input/input0/ drwxr-xr-x 2 root root 0 Dec 31 16:01 capabilities drwxr-xr-x 2 root root 0 Dec 31 16:01 event0 drwxr-xr-x 2 root root 0 Dec 31 16:01 id -r--r--r-- 1 root root 4096 Dec 31 16:01 modalias -r--r--r-- 1 root root 4096 Dec 31 16:01 name -r--r--r-- 1 root root 4096 Dec 31 16:01 phys lrwxrwxrwx 1 root root 0 Dec 31 16:01 subsystem -> ../../../../class/input -rw-r--r-- 1 root root 4096 Dec 31 16:01 uevent -r--r--r-- 1 root root 4096 Dec 31 16:01 uniq -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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