Messages in this thread |  | | | From | "Wanghong Yuan" <> | | Subject | How to enable printk | | Date | Mon, 29 Apr 2002 00:20:11 -0500 |
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Hi,
It may be a simple question. But I cannot see the result of printk in console like the following. Do i need to enable it somewhere? Thanks
/*-O2 -Wall -DMODULE -D__KERNEL__ -DLINUX -c testsys.c */ #include <linux/sys.h> #include <linux/mm.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/sched.h> #include <sys/syscall.h> #include <asm/uaccess.h>
/* The system call number we attempt to install ourselves as. */ static int syscall_num = 165; asmlinkage int sys_test(int pid, int period, int cycles, int* ptr)
{ put_user(current->pid, ptr); return pid-10000; } extern int sys_call_table[];
#ifdef MODULE int init_module(void) { printk("yes\n"); sys_call_table[syscall_num] = (int)sys_test; return 0; } void cleanup_module(void) { sys_call_table[syscall_num] = 0; } #endif /* MODULE */
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