How to setup a driver on uClinux ?

Hi,

what is necessary, you find at:

http://www.niosforum.com/forum/index.php?a...=st&f=18&t=2411 (http://)

The commands you are looking are integrated in the busybox.

All you need to know is in the Kernel Docs which come along with your Linux Distro

Hello absolutebeginner ,

I am really curious on the link you provided since I could not view it (I have tried on many other browsers ). PLease check again.

Thank you,

OnetNet

I'm so sorry about the broken link...

it links to my question how to build .ko file

question about building a module (http://www.niosforum.com/forum/index.php?act=st&f=18&t=2411)

if it still doesn't work, you can find it on page 3 in the uclinux section of this forum.

for testing you'll have to transfer your module in your niossystem of course.

Here is a little example, how to use the commands. Lets assume your module name is 'Hello_Kernel':

first

busybox insmod Hello_Kernel"

insert your module

then you'll need make it visible in your filesystem:

mknod "Hello_Kernel" c a b"

a and b are the major and minor numbers defined in your module code. So put will have to put the numbers instead of a and b. c is an option !

to access the module in your user application program

use the open(...) command. The name of the module to be opened is "Hello_Kernel".

---

you unload your module with rmmod.

i recommend to read 'Linux device drivers- 3rd Edition' by Corbet & Rubini. Its published by O'reilly. there is also an online version. The online version covers an older kernel. But i don't have the link right now.

it must be

mknod Hello_Kernel c a b

and

busybox insmod Hello_Kernel.ko

without the character "

sorry, i'm in hurry today

Hi absolutebeginner !

Thank you very much for your help.

It's very clear !

Thanks again,