* how to disable the button kernel module?
@ 2019-11-14 12:00 Bruno GNUser
2019-11-15 5:33 ` Randy Dunlap
0 siblings, 1 reply; 3+ messages in thread
From: Bruno GNUser @ 2019-11-14 12:00 UTC (permalink / raw)
To: linux-kernel
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
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.
Thanks,
Bruno GNUser
--
Sent from: http://linux-kernel.2935.n7.nabble.com/
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: how to disable the button kernel module?
2019-11-14 12:00 how to disable the button kernel module? Bruno GNUser
@ 2019-11-15 5:33 ` Randy Dunlap
2019-11-15 9:11 ` Rafael J. Wysocki
0 siblings, 1 reply; 3+ messages in thread
From: Randy Dunlap @ 2019-11-15 5:33 UTC (permalink / raw)
To: Bruno GNUser, linux-kernel, ACPI Devel Mailing List
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?
> Thanks,
> Bruno GNUser
>
>
> --
> Sent from: http://linux-kernel.2935.n7.nabble.com/
--
~Randy
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: how to disable the button kernel module?
2019-11-15 5:33 ` Randy Dunlap
@ 2019-11-15 9:11 ` Rafael J. Wysocki
0 siblings, 0 replies; 3+ messages in thread
From: Rafael J. Wysocki @ 2019-11-15 9:11 UTC (permalink / raw)
To: Randy Dunlap
Cc: Bruno GNUser, Linux Kernel Mailing List, ACPI Devel Mailing List
On Fri, Nov 15, 2019 at 6:33 AM Randy Dunlap <rdunlap@infradead.org> 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@mail.gmail.com/T/#t
Thanks!
^ permalink raw reply [flat|nested] 3+ messages in thread
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