Re: bug(?) in block_til_ready serial.c - open() blocking, 2.0 & 2.2

Tomasz Motylewski (motyl@stan.chemie.unibas.ch)
Sat, 27 Mar 1999 14:38:42 +0100 (MET)

On Fri, 19 Mar 1999, Alan Cox wrote:

>
> > My program is partially based on serial-programmming-howto. May still contain
> > some bugs. But it should not result in such a state of /dev/ttyS0. In my
> > opinion serial.c uses too much undocumented features of Linux scheduler.
>
> Try O_NDELAY as a flag
>

OK, the bug was in my program - I have put CLOCAL flag into c_oflag, not
c_cflag, thus effectively clearing it. But then I consider not using
"O_NDELAY" by "stty" program a bug.

After "stty -clocal < /dev/ttyS0" you can not use stty any more.

Best regards,

--
Tomek




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