Re: interview question how does application connects to device

[Paraneetharan Chandrasekaran <paraneetharanc@xxxxxxxxx>]

I think the thread originator is asking about how the application knows which device file to read or write.
This is done by h/w management system udev. udev creates/manages device nodes in /dev/ dir and notifes applications based on the udev rules written (via HAL events or DBUS signals).

Thanks,
Paraneetharan C

On 5 July 2011 12:21, Philipp Ittershagen <lists@xxxxxxxxxxxx> wrote:

On 07/05/2011 06:15 AM, Bond wrote:
> But he was expecting some thing more complex.

Well, to be honest, I also was expecting something more complex when I
first looked at kernel programming and creating character devices ;) But
the file_operations interface is really straight-forward and simple,
very nice.


Philipp

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-- 
Regards,
Paraneetharan C
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