Re: [PATCH 0/8] Rework KERN_

Joe Perches
2012-06-05T23:52:31Z

On Wed, 2012-06-06 at 01:48 +0200, Kay Sievers wrote:
> On Wed, Jun 6, 2012 at 1:43 AM, Joe Perches <joe@perches.com> wrote:
> > On Wed, 2012-06-06 at 01:39 +0200, Kay Sievers wrote:
>
> >> > # echo "\001Hello Andrew" > /dev/kmsg
> >> > /dev/kmsg has
> >> > 12,774,2462339252;\001Hello Andrew
> >>
> >> Try "echo -e"? The stuff is copied verbatim otherwise.
> >
> > # echo -e "\001Hello Kay" > /dev/kmsg
> > gives
> > 12,776,3046752764;\x01Hello Kay
>
> Don't you need two bytes to trigger the logic?

Yes. Angle brackets fore and aft.

If you use a "<n>" prefix for write to /dev/kmsg,
then it's supported just like before.

Otherwise, it's emitted at KERN_DEFAULT.

cheers, Joe