I beg to differ.On Thu, 20 Jan 2005 04:55:20 -0800, Can Sar <csar@xxxxxxxxxxxx> wrote:
Hi,
I wrote my own block device called sbd (using code
Minor numbers are NOT used to differentiate or recognize partitions, as you said. Actually there are
Please refer to LDD, chapter 12, page 361. Partitions are pulled based on the minor numbers.
Based on the major numbers, system calls are dispatched by kernel. One device driver is always registerd with the kernel specifying major number and file operations. (of cource, different structures for block and n/w devices)two device numbers, Major and Minor Numbers for each device file. These numbers are associated with each device file and they have a place in device file's inode. Major number is only important to the kernel.
This is new to me. Theoretically, it is possible. But I am yet to see one that works.Actually each device driver can handle more than one device of same type or even of different types (normally its of same type, for instance you normally wont find a driver handling HDD, FDD and CD-ROM at the same time, but its possible to write such drivers). As
Regards, Om.
-- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
