Hi Everybody

My problem is weird smwhat..i m also little bit confused but any help will be appreciated
I am using Freescale's i/MX21 board as target..i m using Linux on target board ..I want to know how peripheral i.e .LCD ,Keypad etc...Probing is done at bootup time of Linux on target..
i mean at what stage we can get to know about LCD initialization or keypad detection ..so that if i change keypad it should automatically detect the changed keypad..

Actually i have to develop Application that have to detect Peripheral (just think keypad) dynamically..means if i change Keypad attached to the Target my application should detect this ...

1 more thing can i use keypad as a plug n play or only after restarting i can detect the keypad..

Pls let me know what ever u can tell in this regard

Thanx
Hazzy

Well, that all depends on the type of "keypad" you refer to. Particularly the interface.

Linux loads all the built-in drivers in the kernel in some Linus Torvalds-defined order, then loads modules as specified using the modprobe configuration.

Hotplugging of devices is performed by the hotplug subsystem: an event-driven mechanism for the loading or resetting of drivers.