How to setup a driver on uClinux ?

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.