procfs and sysfs changes?

procfs and sysfs changes?

[Ram]

Hi,
  i am porting a driver from 2.4 to 2.6.

   I went thru the porting guide available in lwn.net. some parts of
the document is difficult to follow for begineers.


  am confused.

  Could any one let me know what changes i need to make in a 2.4 driver
  as far as /proc interface is concerned.

  Should i make any new additions to support sysfs?.  am cofused
regarding the need
  of sysfs when /proc is already there.


  Could anyone help me on this.

  pointers will be very helpful.


Regards,
sriram

Re: procfs and sysfs changes?

[Greg KH]

On Fri, Jun 16, 2006 at 04:58:59PM +0530, Ram wrote:
> Hi,
>  i am porting a driver from 2.4 to 2.6.
> 
>   I went thru the porting guide available in lwn.net. some parts of
> the document is difficult to follow for begineers.
> 
> 
>  am confused.
> 
>  Could any one let me know what changes i need to make in a 2.4 driver
>  as far as /proc interface is concerned.

You should not put anything in /proc for a driver.

>  Should i make any new additions to support sysfs?.  am cofused
> regarding the need
>  of sysfs when /proc is already there.

What do you need to put in sysfs becides what is automatically created
for you by the driver core?

It really depends on what you are wanting to do.

>  Could anyone help me on this.
> 
>  pointers will be very helpful.

Take a look at the book, "Linux Device Drivers, third edition", online
for free, for more details about sysfs and the driver core.

hope this helps,

greg k-h