Thank you both Nick and Rami. You helped me a lot !
*--*Airton Ishimori On Mon, May 18, 2015 at 5:01 PM, Rami Rosen <[email protected]> wrote: > Hi, Airton, > > This is simply a matter of setting dmesg to work with > the level which you need in your setup. > You should set "dmesg -n" to work with the pr_info() level. > Pleas look in man dmesg, for the "-n, --console-level level" part. > > If you are in a haste and looking for immediate solution, you can also > try pr_err() instead, as most distros do print such messages with > dmesg without need for any special setup. > > Regards, > Rami Rosen > http://ramirose.wix.com/ramirosen > > On 18 May 2015 at 22:23, Airton Ishimori <[email protected]> wrote: > > Hello, everybody, > > > > I'm trying to develop a new Ethernet driver (Realtek) for Linux kernel > > 4.0.2. > > > > [ 3.612938] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded > > > > As part of my studies, I'm trying to trace the path for functions > defined in > > drivers/net/ethernet/realtek/r8169.c, net/core/dev.c and > > net/core/dev_ioctl.c. I'm using "printks" for this purpose. For instance, > > something like: > > > > printk("TEST: __dev_set_promiscuity\n"); > > > > However, I'm not getting what's going on. I can set/unset the promiscuity > > behaviour via ifconfig command. > > > > [ 131.330091] device eth0 entered promiscuous mode > > [ 170.619086] device eth0 left promiscuous mode > > > > By looking at the dmesg output above, I thought the function that deals > with > > promiscuity was __dev_set_promiscuity() defined in net/core/dev.c, > because > > this function calls a function to print the message above: > > > > pr_info("device %s %s promiscuous mode\n", dev->name, dev->flags & > > IFF_PROMISC ? "entered" : "left"); > > > > But, when I tried to look for my printk message with dmesg after > compiling > > and running the kernel, I couldn't find it. > > > > $ cd linux-4.0.2/ > > $ make net && make modules > > $ sudo make modules_install && sudo make install > > > > Can somebody help me to understand what's happening? > > > > Thanks in advance, > > > > -- > > Airton Ishimori > > > > > > _______________________________________________ > > Kernelnewbies mailing list > > [email protected] > > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > > >
_______________________________________________ Kernelnewbies mailing list [email protected] http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
