N.B: I Suppose you're running 2.4 kernel
.....
>
> int init_module()
> {
> Major = module_register_chrdev(0, DEVICE_NAME, &Fops); /* Wrong !!!!!!!*/
Major =register_chrdev(0, DEVICE_NAME, &Fops);
> if (Major < 0)
> {
> printk ("dispositivo %s fallà con %d\n", "Lo siento, registrando el
> carÃcter", Major); return Major;
> }
....
> void cleanup_module()
> {
> int ret;
> ret = module_unregister_chrdev(Major, DEVICE_NAME); /* Wrong!! */
ret = unregister_chrdev(Major, DEVICE_NAME);
> if (ret < 0)
> printk("Error en unregister_chrdev: %d\n", ret);
> }
> -------------------------------------------------------------
>
> ÂWhat is a "unresolved symbol"?
unresolved symbol means that such symbol isn't exported by kernel (by mean of EXPORT_SYMBOL)...
take a look to /proc/ksyms to get a list of such symbols.
N.B: There are other clean up to do in that code (module_init/module_cleanup [look at include/linux/init.h]), as
well as MINOR(inode->r_dev) [include/linux/fs.h] .... have fun!
> As ever, Thank you very much, in advance.
No thanks but sangria ;)
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Daniele Bellucci
--
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