This commit replaces the `mdev -s` call to populate the device tree with
the "new" `mdev -df` daemon mode, introduced in BusyBox 1.31.0, 2019.
In daemon mode mdev listens to kernel uevents, replacing the hotplug use
of mdev. After creating the netlink socket, 'mdev -df' performs the same
initial scan as 'mdev -s' did.
To perform device (re)discovery, module loading and setup, including any
firmware loading, a coldplug operation is typically required. This is
done by the new /libexec/finit/coldplug script, by Alexander Zangerl.
Unlike 'mdevadm settle', mdev does not offer any mechanism to detect when
the discovery operation is done: on slower systems the triggering side,
the coldplug script, often completes quite a bit earlier than mdev's
uevent processing. I.e., depending on <run/coldplug/success> is not an
indicator of all devices having been (re)discovered and fully set up.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This is the first example of the just minted advanced stanza syntax with
if-statements, conflict handling, and nowarn flags.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Joachim Wiberg