Re: Opinions on removing /proc/tty?

[Randy.Dunlap]

On Sun, 9 Jul 2006 01:20:12 -0400 Jon Smirl wrote:

> On 7/9/06, Randy.Dunlap <rdunlap@xxxxxxxxxxxx> wrote:
> > On Sat, 8 Jul 2006 01:56:02 -0400 Jon Smirl wrote:
> >
> > > On 7/8/06, Randy.Dunlap <rdunlap@xxxxxxxxxxxx> wrote:
> > > > I don't know how well this is an answer to your question,
> > > > but I would like to be able to find a list of registered "consoles,"
> > > > whether they be serial, usbserial, netconsole, lp, or whatever.
> > > > /proc/tty/drivers does that partially.
> > >
> > > Console is an overloaded word. Do you want to know where it is legal
> > > to send system log output to, or do you want to know where you can log
> > > in from? There was a thread earlier that talked a little about
> > > controlling this.
> >
> > I have a working definition:
> > I want to see a list of drivers that have called register_console().
> >
> > > > I have a patch that also does it in /proc/consoles:
> > > >   http://www.xenotime.net/linux/patches/consoles-list.patch
> > > > Is somewhere in /sys the right place to find a list of all consoles?
> > >
> > > /sys is the right place for this info but a class does not exist for it yet.
> >
> > I want a list of registered consoles.  How would I express that in /sys ?
> 
> You could make the list appear as an attribute in
> /sys/class/tty/console. You will need to all a little sysfs code after
> the console tty device is created.
> 
> >
> > > Your patch isn't printing correctly. It is supposed to write the
> > > output to seq_file, not use printk.
> >
> > Pray tell where does it call printk()?
> >
> 
> +	for (con = console_drivers; con; con = con->next)
> +		printk("%d: %-8s %c:%c:%c flags:%s%s%s%s%s\n",
> +			con->index, con->name,
> +			con->read ? 'R' : 'x',

Ack, don't know how I missed that.

---
~Randy
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