On Sat, 01 May 2010 00:03:00 +0200 Samo Pogacnik wrote: > Hi, > diff --git a_linux-2.6.33.3/drivers/char/Kconfig b_linux-2.6.33.3/drivers/char/Kconfig > index e023682..b5d0909 100644 > --- a_linux-2.6.33.3/drivers/char/Kconfig > +++ b_linux-2.6.33.3/drivers/char/Kconfig > @@ -66,6 +66,23 @@ config VT_CONSOLE > > If unsure, say Y. > > +config VT_CONSOLE_DETOUR > + bool "Support for VT console detour via printk" > + depends on VT_CONSOLE > + default n > + ---help--- > + If you do say Y here, the support for writing console messages via If you say Y here, > + printk is included into VT console code. > + > + The feature is usefull to catch all console log. In order to use this useful log messages. > + feature, you should specify kernel command line option "detour" or write a > + positive number into /proc/sys/kernel/console_detour. You can disable > + the feature on-line by writing zero into the proc file. By writing a > + negative value into the proc file, the feature is disabled permanently > + (until next boot). > + > + If unsure, say N. > + > config HW_CONSOLE > bool > depends on VT && !S390 && !UML > diff --git a_linux-2.6.33.3/drivers/serial/Kconfig b_linux-2.6.33.3/drivers/serial/Kconfig > index 9ff47db..20acfab 100644 > --- a_linux-2.6.33.3/drivers/serial/Kconfig > +++ b_linux-2.6.33.3/drivers/serial/Kconfig > @@ -1031,6 +1031,23 @@ config SERIAL_CORE > config SERIAL_CORE_CONSOLE > bool > > +config SERIAL_CORE_CONSOLE_DETOUR > + bool "Support for serial console detour via printk" > + depends on SERIAL_CORE_CONSOLE > + default n > + ---help--- > + If you do say Y here, the support for writing console messages via If you say Y here, > + printk is included into serial console code. > + > + The feature is usefull to catch all console log. In order to use this useful log messages. > + feature, you should specify kernel command line option "detour" or write a > + positive number into /proc/sys/kernel/console_detour. You can disable > + the feature on-line by writing zero into the proc file. By writing a > + negative value into the proc file, the feature is disabled permanently > + (until next boot). > + > + If unsure, say N. > + The kernel command line option needs to be added to Documentation/kernel-parameters.txt also, please. > config CONSOLE_POLL > bool > > diff --git a_linux-2.6.33.3/include/linux/console.h b_linux-2.6.33.3/include/linux/console.h > index dcca533..bc88030 100644 > --- a_linux-2.6.33.3/include/linux/console.h > +++ b_linux-2.6.33.3/include/linux/console.h > @@ -108,6 +108,12 @@ struct console { > struct console *next; > }; > > +extern int console_detour; > +extern void console_printk_detour(const unsigned char *, int); Please include parameter names in function prototype(s). > + > +struct ctl_table; > +int detour_sysctl_handler(struct ctl_table *, int, void __user *, size_t *, loff_t *); ditto > + > extern int console_set_on_cmdline; > > extern int add_preferred_console(char *name, int idx, char *options); Looks interesting/useful to me. Thanks. --- ~Randy *** Remember to use Documentation/SubmitChecklist when testing your code *** -- To unsubscribe from this list: send the line "unsubscribe linux-embedded" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html