On Fri, Nov 22, 2024 at 06:29:57PM +0100, Joshua Grisham wrote: > Hi Ilpo and Armin and thank you for the replies; these are exactly the > kind of questions I was hoping for! :) > > Den ons 20 nov. 2024 kl 13:00 skrev Armin Wolf <W_Armin@xxxxxx>: > > After looking at the driver, i would advise you to drop the acpi_driver stuff and instead > > implement the whole driver as a platform_driver. Does the kernel already create a suitable > > platform device with the name "SAM04[number]:[number]"? > > Yes, the kernel creates an ACPI device exactly as you asked. Hi! If there is a suitable platform device, your platform driver already has an acpi_match_table, thus you can get your acpi_device with ACPI_COMPANION or your handler with ACPI_HANDLER. Check [1] for an example. ~ Kurt [1] https://elixir.bootlin.com/linux/v6.12/source/drivers/platform/x86/wmi.c#L1239 > [...]
