[Buildroot] [PATCH] package/eudev: tweak initscript

[Yann E. MORIN <yann.morin.1998@free.fr>]

Gustavo, All,

On 2014-10-20 14:45 -0300, Gustavo Zacarias spake thusly:
> Make the udev initscript trigger in a coherent way, i.e. first set
> subsystems, then device and then let the whole thing settle.
> Otherwise for usb_modeswitch udev rules they never kick in since the
> storage aspect (device) gets claimed first and the switch ignored.
> 
> Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
> ---
>  package/eudev/S10udev | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/package/eudev/S10udev b/package/eudev/S10udev
> index 107dfd5..c3eafce 100755
> --- a/package/eudev/S10udev
> +++ b/package/eudev/S10udev
> @@ -30,8 +30,9 @@ case "$1" in
>          printf "Populating ${udev_root:-/dev} using udev: "
>          printf '\000\000\000\000' > /proc/sys/kernel/hotplug
>          $UDEV_BIN -d || (echo "FAIL" && exit 1)

Hmmm... This exit won't do much: it exits a sub-shell, so the initscript
will still continue...

> -        udevadm trigger --action=add
> -        udevadm settle
> +        udevadm trigger --type=subsystems --action=add
> +        udevadm trigger --type=devices --action=add
> +        udevadm settle --timeout=10

Why did you add a timeout, and not explain it?

Also, are 10 seconds really enough? What happens if a device takes
longer than 10s to initialise (and it is needed to boot, like a slow
USB mass-storage) ?

Regards,
Yann E. MORIN.

>          echo "done"
>          ;;
>      stop)
> -- 
> 2.0.4
> 
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