Messages in this thread | | | Date | Mon, 09 Jun 2008 01:44:57 +0800 | From | RuoMu Hu <> | Subject | Re: Create proc entry under /proc/sys/kernel |
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Alexey Dobriyan wrote: > On Sun, Jun 08, 2008 at 04:00:57PM +0800, RuoMu Hu wrote: > >> Is it possible to create a proc entry under /proc/sys/kernel directly by >> create_proc_read_entry in the way shown below? >> > > No longer. > > >> test_pde = create_proc_read_entry("/proc/sys/kernel/test", 0, NULL, >> test_read_proc, NULL); >> if (test_pde == NULL) { >> printk(KERN_ERR "Failed to create the test proc file.\n"); >> return -ENOMEM; >> } >> >> I'm using this in my kernel module but create_proc_read_entry always >> returns fail, while there's no problem creating proc entries directly under >> /proc. The kernel source I'm building my kernel module against is >> 2.6.25.4. >> > > Use register_sysctl_table() for sysctls. >
Thank you for your hint, it really helped me.
Another question: Is it possible to add an entry under /proc/sys/kernel by register_sysctl_table() without modifying kernel source (adding an entry to the kern_table[] array in kernel/sysctl.c)?
Best regards, Romu
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