On Tue, 12 Jun 2007, Jan Engelhardt wrote: > >4) It assumes the current will be sufficient to burn out the speaker. (I > >know it will get very hot on older machines, whether it will burn out -- > >might even depend on the exact speaker model.) > > Since you can set the x86's crystals frequency from 1193182 to 18 Hz > (PIT_TICK_RATE / 1 to PIT_TICK_RATE / 65535) [*], you can never really > bust it. But even then, what would a speaker do it was constanly given
I am fairly sure you have a choice between a steady low and a steady high level on the speaker output available if you switch the 8254 to the right single-shot mode. In case you have not been into such details -- the 8254 offers six modes of operation, selected for each channel separately, of which only two are periodic. Maciej - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
