[PATCH] ubox: logread add option to filter priority (log level)

[Legale Legale]

This will print only DEBUG PRIO.

root at AP_44D1FABC0E5C:~# logread -f -v 7
Mon Aug 21 14:48:24 2023 user.debug root: HELLO!!!

On Mon, 24 Jul 2023 at 18:22, Hannu Nyman <hannu.nyman at iki.fi> wrote:
>
> Paul D kirjoitti 24.7.2023 klo 13.19:
> > For those executing this at the command line, how does one 'repeat'?
> >
> > -v 1 -v 2, or -v1 -v2 or -v123 or -v 1,2,3?
> >
> > I had to think for a bit since it wasn't immediately obvious.
> >
> > Perhaps a hint string with "(repeatable eg -v 1 -v 2)"?
> >
> >
> >
> > On 2023-07-22 14:40, Legale Legale wrote:
> >>  From 071cfc2853dd7a4f9fb59a1650de8d5c874ce4f2 Mon Sep 17 00:00:00 2001
> >> From:
> >> Date: Sat, 22 Jul 2023 01:28:05 +0300
> >> Subject: [PATCH] logread: add option to filter priority (log level)
> >>
> >> This adds an ability to filter log messages priority:
> >>          -v      <log level>     handle only messages with given log
> >> level (0-7), repeatable
> >>          -V      <log level>     ignore messages with given log level
> >> (0-7), repeatable
>
>
> I think that a more normal approach would be same as with kernel log:
> defining the minimum seriousness (max level), and printing the items more
> serious than that.
>
> https://www.kernel.org/doc/html/next/core-api/printk-basics.html
>
>  > The log level specifies the importance of a message. The kernel decides
> whether to show the message immediately (printing it to the current console)
> depending on its log level and the current console_loglevel (a kernel
> variable). If the message priority is higher (lower log level value) than the
> console_loglevel the message will be printed to the console.
>
> Simiilar approach of "show log items at least as serious as X" (=loglevel
> 0-X) would look more natural to me.
>
> There might be also filtering by individual level (with repeatable options),
> but the use case is not that obvious.
>
>
>
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