On do, 2015-07-16 at 13:55 +0100, Mark Brown wrote:
> No, in that case you've not understood what the MODULE_ALIAS is
> for. It's there so that userspace knows which module to load if it
> gets
> a device with no driver, it goes in the driver not in the code
> registering the device.
That's exactly how I understood MODULE_ALIAS() to work.
And it works, in short, because a platform device fires a
"MODALIAS=platform:[...]" uevent when it's created. And userspace uses
that uevent to load the module carrying that alias.
Let's put it this was. If one does
sudo find /sys -perm -o=r -name uevent -exec grep -H MODALIAS=platform: {}
\;
or
sudo find /sys -perm -o=r -name modalias -exec grep -H platform: {} \;
(both lists should be similar)
on the systems this patch is targeting, will
platform:rockchip-snd-max98090
then show up?
Thanks,
Paul Bolle
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