Messages in this thread | | | Date | Sat, 18 Sep 2004 21:57:32 -0400 (EDT) | From | Vladimir Dergachev <> | Subject | Re: Design for setting video modes, ownership of sysfs attributes |
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On Sat, 18 Sep 2004, Jon Smirl wrote:
> Isn't there an enviroment variable that tells what device is the > console for the session? How do you tell what serial port you're on > when multiple people are logged in on serial lines?
From any program you can do this:
volodya@silver:~$ ls -l /proc/self/fd/0 lrwx------ 1 volodya users 64 Sep 18 21:56 /proc/self/fd/0 -> /dev/pts/1
So you get the pointer to the actual device stdin is associated to.
best
Vladimir Dergachev
> > > On Sat, 18 Sep 2004 16:33:54 -0700, Keith Packard <keithp@keithp.com> wrote: >> >> Around 18 o'clock on Sep 18, Jon Smirl wrote: >> >>> The sysfs scheme has the advantage that there is no special user >>> command required. You just use echo or cp to set the mode. >> >> But it makes it difficult to associate the sysfs entry with the particular >> session. Seems like permitting multiple opens of /dev/fb0 with mode >> setting done on that file pointer will be easier to keep straight >> >> >> >> > > > > -- > Jon Smirl > jonsmirl@gmail.com > > > ------------------------------------------------------- > This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 > Project Admins to receive an Apple iPod Mini FREE for your judgement on > who ports your project to Linux PPC the best. Sponsored by IBM. > Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php > -- > _______________________________________________ > Dri-devel mailing list > Dri-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/dri-devel > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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