Messages in this thread | | | From | Yu Luming <> | Subject | Re: [PATCH 2.6.18-mm2] acpi: add backlight support to the sony_acpi driver | Date | Tue, 10 Oct 2006 22:32:46 +0800 |
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> > Please move it into the kernel where it belongs, and use lcd > > brightness subsystem like everyone else. > > We've been through this before. > http://marc.theaimsgroup.com/?l=linux-kernel&m=114067198323596&w=2 > > In addition, the SMI call used to change the backlight level *may* > require (if configured by the sysadmin in BIOS), a password be > entered. > > This begs for a common userspace app that can grok libsmbios and > kernel interfaces both, and use the appropriate method on each, rather > than just putting it all in the kernel
From my understanding, a cute userspace App shouldn't have this kind of logic: if (is DELL ) invoke libsmbios if (is foo) invoke libfoo, if (is bar) invoke libbar, .... else operate on /sys/class/backlight/ ,.,..
It should be: just write/read file in /sys/class/backlight ,....
Right?
Thanks, Luming
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