linux-kernel - Re: [PATCH 3/5] [media] rc: meson-ir: Fix module autoload

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Date:   Mon, 17 Oct 2016 09:40:30 -0700
From:   Kevin Hilman <khilman@...libre.com>
To:     Javier Martinez Canillas <javier@....samsung.com>
Cc:     lkml <linux-kernel@...r.kernel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Carlo Caione <carlo@...one.org>,
        linux-amlogic <linux-amlogic@...ts.infradead.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-media@...r.kernel.org
Subject: Re: [PATCH 3/5] [media] rc: meson-ir: Fix module autoload

On Mon, Oct 17, 2016 at 8:44 AM, Javier Martinez Canillas
<javier@....samsung.com> wrote:
> If the driver is built as a module, autoload won't work because the module
> alias information is not filled. So user-space can't match the registered
> device with the corresponding module.
>
> Export the module alias information using the MODULE_DEVICE_TABLE() macro.
>
> Before this patch:
>
> $ modinfo drivers/media/rc/meson-ir.ko | grep alias
> $
>
> After this patch:
>
> $ modinfo drivers/media/rc/meson-ir.ko | grep alias
> alias:          of:N*T*Camlogic,meson-gxbb-irC*
> alias:          of:N*T*Camlogic,meson-gxbb-ir
> alias:          of:N*T*Camlogic,meson8b-irC*
> alias:          of:N*T*Camlogic,meson8b-ir
> alias:          of:N*T*Camlogic,meson6-irC*
> alias:          of:N*T*Camlogic,meson6-ir
>
> Signed-off-by: Javier Martinez Canillas <javier@....samsung.com>

Acked-by: Kevin Hilman <khilman@...libre.com>