Frédéric On 02/09/2009 11:48 AM, Frédéric Maria wrote: > Hello, > > for a personal project I was interrested in using the wait for interrupt > capability of serial ports. > > After searching for documentation I found very few data about the tty ioctl > commands: TIOCMIWAIT and TIOCGICOUNT. > Moreover this was not documented in man4/tty_ioctl.4 file. > > So here is a possible patch to add quick information on TIOCMIWAIT and > TIOCGICOUNT commands. > > This patch is against version 3.17 of the man pages. > > Please do not hesitate to correct english terms as this is not my birth tongue. Long after the fact, I've applied this patch. Thanks for sending it. Cheers, Michael > --- /home/fred/man-pages-3.17/man4/tty_ioctl.4 2009-01-19 05:14:02.000000000 > +0100 > +++ /home/fred/man-pages-3.17-new/man4/tty_ioctl.4 2009-02-09 10:20:43.363377700 > +0100 > @@ -349,18 +349,26 @@ > .SS "Modem control" > .TP > .BI "TIOCMGET int *" argp > -get the status of modem bits. > +Get the status of modem bits. > .TP > .BI "TIOCMSET const int *" argp > -set the status of modem bits. > +Set the status of modem bits. > .TP > .BI "TIOCMBIC const int *" argp > -clear the indicated modem bits. > +Clear the indicated modem bits. > .TP > .BI "TIOCMBIS const int *" argp > -set the indicated modem bits. > +Set the indicated modem bits. > +.TP > +.BI "TIOCMIWAIT int " arg > +Wait for any of the 4 modem bits (DCD, RI, DSR, CTS) to change. > +The mask is passed in arg for bits of interest (use |'ed > +TIOCM_RNG/DSR/CD/CTS for masking). > +Caller should use > +.B TIOCGICOUNT > +to see which one it was. > .LP > -Bits used by these four ioctls: > +Bits used by these five ioctls: > > .nf > TIOCM_LE DSR (data set ready/line enable) > @@ -375,6 +383,15 @@ > TIOCM_RI see TIOCM_RNG > TIOCM_DSR DSR (data set ready) > .fi > +.TP > +.BI "TIOCGICOUNT struct serial_icounter_struct *" argp > +Get counter of input serial line interrupts (DCD, RI, DSR, CTS). > +Write counters to the user passed > +.I argp > +serial_icounter_struct structure. > +.br > +NB: both 1->0 and 0->1 transitions are counted except for > +RI where only 0->1 is counted. > .SS "Marking a line as local" > .TP > .BI "TIOCGSOFTCAR int *" argp > > > > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/ -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
