Re: how to disable the button kernel module?

From: Rafael J. Wysocki
Date: Fri Nov 15 2019 - 04:11:41 EST


On Fri, Nov 15, 2019 at 6:33 AM Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote:
>
> On 11/14/19 4:00 AM, Bruno GNUser wrote:
> > I realize that /button/ is a kernel built-in and therefore cannot be disabled
> > via the /blacklist=<module_name>/ boot parameter. So I thought I'd try
> > /initcall_blacklist=<function>/ but I cannot find an obvious module
> > initialization function in button.c
>
> In what kernel version if the button driver built-in?
> It currently can be built as a loadable module.
>
> The lines
> module_driver(acpi_button_driver, acpi_button_register_driver,
> acpi_button_unregister_driver);
> at the end of the source file create an init function named
> acpi_button_driver_init. You could try:
> initcall_blacklist=acpi_button_driver_init
>
>
> > Please, how would one disable the /button/ module? Either using the
> > /initcall_blacklist=foo/ or some other method is fine, as long as it does
> > not involve recompiling the kernel.
>
> Any help from ACPI people?

https://lore.kernel.org/linux-acpi/CAJZ5v0hy2QpJtnGVvOOggOzTDifD1HYosN9vf0y_=15b+M8v0Q@xxxxxxxxxxxxxx/T/#t

Thanks!