Difference between revisions of "Driver for i.MX GPIO controlled keypads"
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==Test== | ==Test== | ||
| − | * use target/demos/keypad_test/ test tool | + | * use ''target/demos/keypad_test/'' test tool |
* If you have a graphical LCD connected to your board (= virtual terminal), then you should see what you type. | * If you have a graphical LCD connected to your board (= virtual terminal), then you should see what you type. | ||
* If you don't have any virtual terminal, but only the serial console: | * If you don't have any virtual terminal, but only the serial console: | ||
Revision as of 12:20, 7 June 2008
PAGE UNDER CONSTRUCTION !!!
Introduction
This driver is intented to control matrix keypads connected to i.MX GPIOs
Installation
If not already done in standard Armadeus rootfs:
$ make linux-menuconfig Device Drivers ---> Input device support ---> [*] Keyboards ---> <*> AT keyboard
then
Device Drivers ---> Armadeus specific drivers ---> <M> Armadeus Keypad driver
Reflash rootfs then:
# modprobe imxkeypad Initializing Armadeus keypad driver input: imxkeypad as /class/input/input0
Test
- use target/demos/keypad_test/ test tool
- If you have a graphical LCD connected to your board (= virtual terminal), then you should see what you type.
- If you don't have any virtual terminal, but only the serial console:
# cat /sys/class/input/input0/event0/dev 13:64
If corresponding device node in /dev/input/ is not existing, then:
# mkdir -p /dev/input # mknod /dev/input/event0 c 13 64
# cat /dev/input/event0
Then you should see weirds characters when pressing keyboard keys:
�,~~_�,}�}�3T,QToT6,TT�,�;��, � �
