err = cdev_add(&dev->myi_cdev, devno, 1);
probably you should change the '1' here to number of minor numbers that you use.
Anand
if (err)
goto err;
else
return;
err:
printk(KERN_ERR "Error %d while adding %s", err, dev->name);
}
After this (long) introduction, my problem : when i am registering
several devices, only device 0 is working, that is to say, when
opening /dev/my_device0, the open function of my driver is called. But
for all the other device numbers, I get the error "No such device or
address".
I really don't see where the problem comes from. I checked with the
debugger that the initialization is ok for each device.
Is it problematic that I call register_chrdev_region and cdev_add not
during module_init but after ?
Thanks in advance for any idea,
Ivan
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