Difference between user space drivers and kernel space drivers

Difference between user space drivers and kernel space drivers

[Manu Gupta]

Hi All,

I have been trying to figure out the difference between user space
drivers and kernel space drivers. I have a few questions
1. What are user space drivers?
2. How are they beneficial and when are they usually used?



-- 
Regards
Manu Gupta

Difference between user space drivers and kernel space drivers

[ankur dwivedi]

Hi Manu,

 Chp -02 in Linux device drivers book, has a section on user space
drivers.You will find that useful.Below is the link:

http://lwn.net/Kernel/LDD3/

On Mon, Jul 30, 2012 at 9:00 AM, Manu Gupta <manugupt1@opensuse.org> wrote:

> Hi All,
>
> I have been trying to figure out the difference between user space
> drivers and kernel space drivers. I have a few questions
> 1. What are user space drivers?
> 2. How are they beneficial and when are they usually used?
>
>
>
> --
> Regards
> Manu Gupta
>
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>



-- 
Thanks

Ankur

You can follow me on twitter @ankurdwi
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Difference between user space drivers and kernel space drivers

[Sannu K]

On Mon, Jul 30, 2012 at 9:00 AM, Manu Gupta <manugupt1@opensuse.org> wrote:
> Hi All,
>
> I have been trying to figure out the difference between user space
> drivers and kernel space drivers. I have a few questions
> 1. What are user space drivers?
> 2. How are they beneficial and when are they usually used?
>
>
>
> --
> Regards
> Manu Gupta
>
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies

If an application or a library that communicates with device and
exposes the device's functionality to the OS then it may be called as
User space driver (this is just my own way of telling). These are
application in user space so they can be managed easily. If there is a
bug in the user space driver it will not crash the system (problems in
Kernel mode driver may crash the system). Printers, Scanners, some USB
devices usually have User space drivers. If the device does not have
much of a real time requirement (no Interrupt etc) then they can have
a user space driver (again this is my own way of telling). If I am
wrong in please correct.

Hope this helps,
Sannu K

Difference between user space drivers and kernel space drivers

[Andreas Platschek]

On 07/30/2012 05:30 AM, Manu Gupta wrote:
> Hi All,
>
> I have been trying to figure out the difference between user space
> drivers and kernel space drivers. I have a few questions
> 1. What are user space drivers?
> 2. How are they beneficial and when are they usually used?
>
>
>    
Hi!

This paper: https://www.osadl.org/fileadmin/dam/rtlws/12/Koch.pdf

answers both questions.

regards,
andi