Messages in this thread | | | Date | Sat, 11 Aug 2007 21:06:02 +0300 | From | "Michael S. Tsirkin" <> | Subject | Re: [PATCH 3/3] ACPI: thinkpad-acpi: change thinkpad-acpi input default and kconfig help |
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> Quoting Henrique de Moraes Holschuh <hmh@hmh.eng.br>: > Subject: [PATCH 3/3] ACPI: thinkpad-acpi: change thinkpad-acpi input default and kconfig help > > The current kconfig help text was misleading users. Also, the default for > an input-layer-optimized support caused way too many problems without > up-to-date userspace in place. > > So, rework the help text, and change the default to N. Note that > distributions are supposed to enable this option as soon as they update HAL > to a version that handles the thinkpad-acpi new input layer interface.
I don't really know the details here, so I could be completely wrong.
However, generally, forcing HAL and kernel to be in sync really looks to me like a non-ideal way to handle interface change. For example, this would mean that one can't use the same kernel for multiple distributions, and for a person like me that needs to switch distros all the time, it seems like a pain.
Could not the kernel expose both new and old interfaces somehow, so that HAL can be updated without recompiling the kernel? For example, there could be a sysfs interface which let the HAL set the desired interface version.
Couldn't that work? This seems easy to code up. Want a patch like that?
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