On Wed, 8 Aug 2007 18:35:35 -0400 Andres Salomon <dilinger@xxxxxxxxxx> wrote: > Currently, there's a CONFIG_DISABLE_CONSOLE_SUSPEND that allows one to stop > the serial console from being suspended when the rest of the machine goes > to sleep. This is incredibly useful for debugging power management-related > things; however, having it as a compile-time option has proved to be > incredibly inconvenient for us (OLPC). There are plenty of times that we > want serial console to not suspend, but for the most part we'd like serial > console to be suspended. > > This drops CONFIG_DISABLE_CONSOLE_SUSPEND, and replaces it with a kernel > boot parameter (no_console_suspend). By default, the serial console will > be suspended along with the rest of the system; by passing > 'no_console_suspend' to the kernel during boot, serial console will remain > alive during suspend. > > I have another version of this patch which keeps #ifdefs around; however, > it's uglier. I prefer this version of the patch, and don't feel that it > increases bloat. If people strongly disagree, let me know and I'll submit > the other patch. > yep, compile-time options suck. > --- a/include/linux/kernel.h > +++ b/include/linux/kernel.h > @@ -172,6 +172,8 @@ extern int __printk_ratelimit(int ratelimit_jiffies, int ratelimit_burst); > extern bool printk_timed_ratelimit(unsigned long *caller_jiffies, > unsigned int interval_msec); > > +extern int console_suspend; > + That's a somewhat vague-sounding identifier. Could we call it console_suspend_enabled or something? - To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html