> If I try to create a file using, 'mknod /dev/scull2 c 250 7' , the > character device file gets created with a minor number of 7. You can create as much /dev/scull2 files using mknod as you want, but they are not linked with your driver. [first_minor, count] pair passed to alloc_chrdev_region reserve for you a range of minors that will be later used by your driver. Next step is to actually create the link between the node and your driver using chrdev_add. > > I have set COUNT_OF_CONTIGOUS_DEVICES to 1. However, I am able to create > multiple files /dev/scull[1-10] using this driver and mknod. > > So, what is the significance of these two variables (first minor number > and count of devices) that we pass to the alloc_chrdev_region api, if Try to read/write from/to your created nodes and see what happens :d. thanks, Daniel. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
