<div>
hi,<br />
&nbsp;here is an example.<br />
<br />
<a href="http://www.atnf.csiro.au/people/rgooch/linux/docs/porting-to-2.2.html" rel="ugc">http://www.atnf.csiro.au/people/rgooch/linux/docs/porting-to-2.2.html</a><br />
<br />
regards <br />

</div>


hi,
 here is an example.

http://www.atnf.csiro.au/people/rgooch/linux/docs/porting-to-2.2.html [http://www.atnf.csiro.au/people/rgooch/linux/docs/porting-to-2.2.html]

regards


<div>
Rubini's book which can be found online has examples that you can build and try out.<br />
<a href="http://www.xml.com/ldd/chapter/book/" rel="ugc">http://www.xml.com/ldd/chapter/book/</a><br />
<br />
See chapter 5, it covers the basics with regards to ioctl, Blocking I/O, Asynchronous Notification, etc.<br />
<br />
Cheers 
</div>


Rubini's book which can be found online has examples that you can build and try out.
http://www.xml.com/ldd/chapter/book/ [http://www.xml.com/ldd/chapter/book/]

See chapter 5, it covers the basics with regards to ioctl, Blocking I/O, Asynchronous Notification, etc.

Cheers

<div>
<div class="content wysiwyg-content">
i want to open a file in user space &amp;&nbsp;want to copy its contents to the kernel space module. &amp;&nbsp;i wanto kno the reverse procedure too...<br />
<br />
actually my ioctl call wud activate my module &amp;&nbsp;then the module reads the file &amp;&nbsp;does some work... &amp;&nbsp;at last has to write the file back to the user space...<br />
<br />
i found out that it canb done by copy_to_user &amp;&nbsp;etc... functions... but have no time for experimentation now..<br />
<br />
&amp;&nbsp;how to manage memory in kernel space ... i mean to allocate buffers &amp;&nbsp;manipulate as done in user space with malloc.<br />
<br />
cud i get some code that gets this work done... coz im in areal hurry, so if i get some code... i wud b indebted... plz<br />
thx<br />
namus
</div>
</div>


i want to open a file in user space & want to copy its contents to the kernel space module. & i wanto kno the reverse procedure too...

actually my ioctl call wud activate my module & then the module reads the file & does some work... & at last has to write the file back to the user space...

i found out that it canb done by copy_to_user & etc... functions... but have no time for experimentation now..

& how to manage memory in kernel space ... i mean to allocate buffers & manipulate as done in user space with malloc.

cud i get some code that gets this work done... coz im in areal hurry, so if i get some code... i wud b indebted... plz
thx
namus

userspace to kernel interraction

Kernel programming for Linux operating systems can be done with many different languages; C, C++, Python, Perl and Java, which are some of the most common languages used.There are also many different varieties of Linux, such as Ubuntu, Fedora and OpenSUSE.