[PATCH v1 2/2] devinfo: print only devices with errors

[Oleksij Rempel]

On Wed, Jun 16, 2021 at 09:59:03AM +0200, Sascha Hauer wrote:
> Hi Oleksij,
> 
> On Sun, Jun 06, 2021 at 02:24:00PM +0200, Oleksij Rempel wrote:
> > Make use of device state flags and print only devices with errors.
> > The result will look like this:
> > barebox at RIoTboard i.MX6S:/ devinfo -e
> > `-- 2188000.ethernet at 2188000.of <-- (error!)
> >    `-- miibus0
> >       `-- mdio0-phy04
> >          `-- 0x00000000-0x0000003f (  64 Bytes): /dev/mdio0-phy04
> >    `-- eth0
> 
> What advantages brings that over doing a dmesg and looking at the
> output?

It makes it possible to add additional handlers. For example, change
heartbeat pattern if some errors was detected. Or add board specific
selftest to check if listed devices was initialized without errors.

Regards,
Oleksij
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